Merge pull request 'Added pipenv files to offer a consistent python environment, including quality.' (#20 ) from issues/14 into release/1.0.0

Reviewed-on: #20 Reviewed-by: caribaud <christian@aribaud.net>
Fixed vscode settings markdown.
2023-06-25 11:32:29 +02:00 · 2023-06-25 11:24:14 +02:00 · 2023-06-25 11:13:44 +02:00 · 2023-06-25 10:37:59 +02:00 · 2023-06-25 09:20:38 +02:00 · 2023-06-25 09:20:06 +02:00
10 changed files with 1338 additions and 464 deletions
--- a/.gitignore
+++ b/.gitignore
@ -1,2 +1,9 @@
+# ESLINT report
+eslint_report.html
+
+# Demo sources
 demos/src_highres
 demos/src_lowres
+
+# Local dev environment settings
+.vscode
--- a/13
+++ b/13
@ -0,0 +1,13 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+
+[dev-packages]
+black = "*"
+prospector = {extras = ["with_mypy"], version = "*"}
+
+[requires]
+python_version = "3.11"
--- a/Pipfile.lock
+++ b/Pipfile.lock
@ -0,0 +1,509 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "6bf84a05ccc0682985bf11d77db01419dde589c614d97f59ca2bac4c4b43c80f"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.11"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {},
+    "develop": {
+        "astroid": {
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+            "version": "==2.15.5"
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+            "version": "==2.17.4"
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+            "version": "==1.2.2"
+        },
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+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==3.0.1"
+        },
+        "setoptconf-tmp": {
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+            ],
+            "version": "==0.3.1"
+        },
+        "smmap": {
+            "hashes": [
+                "sha256:2aba19d6a040e78d8b09de5c57e96207b09ed71d8e55ce0959eeee6c8e190d94",
+                "sha256:c840e62059cd3be204b0c9c9f74be2c09d5648eddd4580d9314c3ecde0b30936"
+            ],
+            "markers": "python_version >= '3.6'",
+            "version": "==5.0.0"
+        },
+        "snowballstemmer": {
+            "hashes": [
+                "sha256:09b16deb8547d3412ad7b590689584cd0fe25ec8db3be37788be3810cbf19cb1",
+                "sha256:c8e1716e83cc398ae16824e5572ae04e0d9fc2c6b985fb0f900f5f0c96ecba1a"
+            ],
+            "version": "==2.2.0"
+        },
+        "toml": {
+            "hashes": [
+                "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
+                "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
+            ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "version": "==0.10.2"
+        },
+        "tomlkit": {
+            "hashes": [
+                "sha256:8c726c4c202bdb148667835f68d68780b9a003a9ec34167b6c673b38eff2a171",
+                "sha256:9330fc7faa1db67b541b28e62018c17d20be733177d290a13b24c62d1614e0c3"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==0.11.8"
+        },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:88a4153d8505aabbb4e13aacb7c486c2b4a33ca3b3f807914a9b4c844c471c26",
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+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==4.6.3"
+        },
+        "wrapt": {
+            "hashes": [
+                "sha256:02fce1852f755f44f95af51f69d22e45080102e9d00258053b79367d07af39c0",
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+                "sha256:e169e957c33576f47e21864cf3fc9ff47c223a4ebca8960079b8bd36cb014fd0",
+                "sha256:e20076a211cd6f9b44a6be58f7eeafa7ab5720eb796975d0c03f05b47d89eb90",
+                "sha256:e826aadda3cae59295b95343db8f3d965fb31059da7de01ee8d1c40a60398b29",
+                "sha256:eef4d64c650f33347c1f9266fa5ae001440b232ad9b98f1f43dfe7a79435c0a6",
+                "sha256:f2e69b3ed24544b0d3dbe2c5c0ba5153ce50dcebb576fdc4696d52aa22db6034",
+                "sha256:f87ec75864c37c4c6cb908d282e1969e79763e0d9becdfe9fe5473b7bb1e5f09",
+                "sha256:fbec11614dba0424ca72f4e8ba3c420dba07b4a7c206c8c8e4e73f2e98f4c559",
+                "sha256:fd69666217b62fa5d7c6aa88e507493a34dec4fa20c5bd925e4bc12fce586639"
+            ],
+            "markers": "python_version >= '3.11'",
+            "version": "==1.15.0"
+        }
+    }
+}
--- a/README.md
+++ b/README.md
@ -25,16 +25,19 @@ flowchart TB
 ```

 Melpomene is mainly one JS file and one CSS file. You only need to include them in you web page. They are :
+
 + `melpomene.js`
+
 + `melpomene.css`

 The JS files expect you to write some very specific HTML tags to be able to work.
 To simplify things, you only need to copy-paste the content of `melpomene.html` into your own page and change a few things :
+
 + You must duplicate the `img` tag for each of you comic page and :
    + set `url` to the actual URL of your page
    + set `height` and `width` to the actual image sizes 
    + set `data-zooms` with the zooms information, like so : `<zoom 1 width>, <zoom 1 height>, <zoom 1 x offset>, <zoom 1 y offset>; <zoom 2 width> ...`
-        + example : `<img loading="lazy" src="https://www.peppercarrot.com/0_sources/ep35_The-Reflection/hi-res/en_Pepper-and-Carrot_by-David-Revoy_E35P01.jpg" data-zooms="2481.0,1327.1057,0.0,0.0;593.15338,1076.4635,0.0,1364.053;890.72864,491.29874,830.81415,1751.5;2481.0,1078.4192,0.0,1364.053;562.77032,909.44702,102.48115,2491.6567;920.74463,909.44702,698.55927,2491.6567;728.776,909.44702,1652.3695,2491.6567"/>`
+    + example : `<img loading="lazy" src="https://www.peppercarrot.com/0_sources/ep35_The-Reflection/hi-res/en_Pepper-and-Carrot_by-David-Revoy_E35P01.jpg" data-zooms="2481.0,1327.1057,0.0,0.0;593.15338,1076.4635,0.0,1364.053;890.72864,491.29874,830.81415,1751.5;2481.0,1078.4192,0.0,1364.053;562.77032,909.4470    2,102.48115,2491.6567;920.74463,909.44702,698.55927,2491.6567;728.776,909.44702,1652.3695,2491.6567"/>`

 Because doing this by hand would be very tedious, Melpomene comes with an helper script that allows generating that HTML for you from SVGs.

@ -45,7 +48,7 @@ The following limitations are known and will be improved upon :
 + Mobile support is currently limited
 + There are some performences issues

-# How to setup Melpomene ?
+# How to use Melpomene ?

 ## Defining the zooms

@ -61,12 +64,12 @@ To create the zooms for a comic page, what you need to do is :
     * If you want to change the zoom order, you can change their order in the layer view of your SVG tool if they support it
 3. Once you are done, save the SGV

-
 ## Generating the HTML files

 Once the SVG for your pages are done, put them in one folder. Then, you can run the zoom generator.

 You need to open a terminal and then run :
+
 + `python zooms_generator.py <path to the SVG folder> html -p <prefix of the img's url> -e <extension of the img's url>`
    + For example, if your comic pages are hosted at `static/comic/page_x.jpg`, the svg must be named `page_x.svg`
      and you must run `python zooms_generator.py <path to the SVG folder> html -p /static/comic/ -e jpg`
@ -89,6 +92,74 @@ If you need to do some global scaling / offset of all zooms in HTML (if for exam
    + If they become greater than the page size, they get clamped to the page size and width / height get reduced to compensate
 + `data-global-zoom-scale="<float value>"` : scale all positions / sizes by this factor

+# Developpement
+
+## Setting up quality checking for JS
+
+Regarding JS, quality checking is done using [eslint](https://eslint.org/).
+
+The configuration file is `eslint/eslintrc.json`.
+
+To setup eslint, you can either install it on your system reading it's documentation, or use the provided Dockerfile to run it. This requires [docker](https://www.docker.com/).
+
+To do so, assuming you are using linux, after installing docker, you can run from this repository root:
+
+ `docker build -t melpomene-eslint eslint/`, once
+
+ `docker run -v .:/melpomene:rw -w /melpomene --user $(id -u):$(id -g) melpomene-eslint`, every time you want to run the analysis
+
+You can now open `eslint_report.html` to see the result.
+
+## Setting up quality checking for Python
+
+Regarding Python, quality checking is done using [prospector](https://prospector.landscape.io/en/master/) using [mypy](https://mypy.readthedocs.io/en/stable/) as an additional checker.
+Auto-formating is done using [Black](https://pypi.org/project/black/)
+
+Dependencies are managed not using `pip` but [`pipenv`](https://pipenv.pypa.io/en/latest/).
+
+To setup prospector, you need to run:
+
+ Only once, in melpomene's root folder:
+    + Install pipenv: `pip install pipenv`
+    + Install melpomene's root folder: `pipenv install --dev`
+ Every time to run the quality checking:
+    + `pipenv shell`
+    + `prospector -s veryhigh -w mypy --max-line-length 88 .`
+    + `black .`
+
+For VSCode users, you can run those automatically in your IDE. Here is what your .vscode/settings.json file should include :
+
+```json
+    "files.exclude": {
+        "**/.git": true,
+        "**/.svn": true,
+        "**/.hg": true,
+        "**/CVS": true,
+        "**/.DS_Store": true,
+        "**/Thumbs.db": true,
+        "**/*.pyc": true,
+        "**/__pycache__": true
+    },
+    // Replace by your own venv python path
+    "python.defaultInterpreterPath": "~\\.virtualenvs\\melpomene-ajDJjHHp\\Scripts\\python.exe",
+    "python.formatting.provider": "black",
+    "[python]": {
+        "editor.formatOnType": true,
+    },
+    "python.linting.enabled": true,
+    "python.linting.prospectorEnabled": true,
+    "python.linting.prospectorArgs": [
+        "-s",
+        "veryhigh",
+        "-w",
+        "mypy",
+        "--max-line-length",
+        "88"
+    ],
+    "editor.rulers": [
+        88
+    ],
+```
 # Credits

-Most examples and the documentation of Melpomene uses illustrations from David "Deevad" Revoy's "Pepper & Carrot" webcomic, which is published under CC-BY 4.0. Full licence [here](https://www.peppercarrot.com/en/license/index.html).
+Most examples and the documentation of Melpomene uses illustrations from David "Deevad" Revoy's "Pepper & Carrot" webcomic, which is published under CC-BY 4.0. Full licence [here](https://www.peppercarrot.com/en/license/index.html). 
--- a/eslint/Dockerfile
+++ b/eslint/Dockerfile
@ -0,0 +1,11 @@
+FROM debian:latest
+
+RUN apt-get update && apt-get install -y --no-install-recommends npm
+
+RUN npm install eslint --global
+
+COPY eslintrc.json /eslintrc.json
+
+WORKDIR melpomene
+
+CMD ["eslint", "--no-eslintrc", "-c", "eslint/eslintrc.json", "-f", "html", "-o", "eslint_report.html",  "melpomene.js"]
--- a/eslint/eslintrc.json
+++ b/eslint/eslintrc.json
@ -0,0 +1,40 @@
+{
+    "env": {
+        "browser": true,
+	"es2021": true
+    },
+    "extends": [
+        "eslint:all"
+    ],
+    "rules": {
+        "semi": "warn",
+        "spaced-comment": "warn",
+        "padded-blocks": ["warn", "never"],
+        "camelcase": "warn",
+        "multiline-comment-style": "off",
+        "max-len": "warn",
+        "prefer-template": "warn",
+        "object-curly-spacing" : ["warn", "always"],
+        "func-style": ["warn", "declaration"],
+        "key-spacing": "warn",
+        "one-var": ["warn", "never"],
+        "quotes": "warn",
+        "space-before-function-paren": ["warn", "never"],
+        "no-undefined": "off",
+        "strict": ["error", "global"],
+        "keyword-spacing": "warn",
+        "function-call-argument-newline": "warn",
+        "operator-assignment": "off",
+        "space-before-blocks": "warn",
+        "brace-style": ["warn", "allman", {"allowSingleLine": true}],
+        "function-call-argument-newline" : ["warn", "consistent"],
+        "function-paren-newline": ["warn", "consistent"],
+        "no-magic-numbers": ["error", {"ignore": [0,1,2,100]}],
+        "quote-props": ["warn", "as-needed"],
+        "no-unused-vars": ["error", {"argsIgnorePattern": "^_"}],
+        "max-len" : ["warn", {"code": 88}],
+        "capitalized-comments": "off",
+        "operator-linebreak": ["warn", "before"],
+        "max-lines": "off"
+    }
+}
--- a/header_version_updater.py
+++ b/header_version_updater.py
@ -0,0 +1,45 @@
+import re
+from pathlib import Path
+
+version = input("New version = ").strip()
+
+js_file = Path("melpomene.js")
+css_file = Path("melpomene.css")
+js_css_match = r"(?<=/\* Version ).*(?= \*/)"
+
+js_variable_match = r"(?<=const MELPOMENE_VERSION = \").*(?=\";)"
+
+html_file = Path("melpomene.html")
+demo_high_res_file = Path("demos/pepper_and_carrot_e35_highres.html")
+demo_low_res_file = Path("demos/pepper_and_carrot_e35_lowres.html")
+html_match = r"(?<=<!-- Version ).*(?= -->)"
+
+zoom_generator_file = Path("zooms_generator.py")
+zoom_generator_match = r"(?<=# Version ).*(?=$)"
+
+
+def replace_version(version, file_path, matcher):
+    with open(file=file_path, mode="r", encoding="UTF8") as file:
+        file_data = file.read()
+
+    file_data = re.sub(matcher, version, file_data)
+
+    with open(file=file_path, mode="w", encoding="UTF8") as file:
+        file.write(file_data)
+
+
+if re.match(r"[.a-zA-Z\ \-0-9]{1,30}", version):
+    replace_version(version, js_file, js_css_match)
+    replace_version(version, js_file, js_variable_match)
+
+    replace_version(version, css_file, js_css_match)
+
+    replace_version(version, html_file, html_match)
+    replace_version(version, demo_high_res_file, html_match)
+    replace_version(version, demo_low_res_file, html_match)
+
+    replace_version(version, zoom_generator_file, zoom_generator_match)
+
+    print("Done")
+else:
+    print("Input is not valid : only use letters, numbers, spaces, dots and dashes")
--- a/melpomene.css
+++ b/melpomene.css
@ -31,6 +31,11 @@
    background-color: black;
 }

+/* Reset images style to avoid external CSS interfering */
+#melpomene img {
+    all: initial;
+}
+
 #melpomene-content-frame {
    position: relative;
    flex: 1;
--- a/melpomene.js
+++ b/melpomene.js
@ -2,422 +2,504 @@
 /* Version 1.0.0_RC1 */
 /* CC-BY-NC-SA : https://git.aribaud.net/caribaud/melpomene/ */

+"use strict";
+
 // ============
 //   CONTROLS
 // ============

-MOVE_NEXT = "ArrowRight"
-MOVE_BACK = "ArrowLeft"
-TOGGLE_FULLSCREEN = "F"
-TOGGLE_PROGRESSBAR = "P"
-TOGGLE_VIEW_MODE = "V"
+const MOVE_NEXT = "ArrowRight";
+const MOVE_BACK = "ArrowLeft";
+const TOGGLE_FULLSCREEN = "F";
+const TOGGLE_PROGRESSBAR = "P";
+const TOGGLE_VIEW_MODE = "V";


 // ========================
 //   NAVIGATION CONSTANTS
 // ========================

-PAGE_TRANSITION_SPEED = "1.5s"
-MOUSEWHELL_MIN_DELAY = 50
-DELAY_BEFORE_HIDDING_CONTROLS = 4000;
+const MOUSEWHELL_MIN_DELAY = 50;
+const DELAY_BEFORE_HIDDING_CONTROLS = 4000;

 // ====================
 //   STATES CONSTANTS
 // ====================

-MELPOMENE_VERSION = "1.0.0_RC1"
+const MELPOMENE_VERSION = "1.0.0_UNSTABLE";

-READER_FRAME = document.getElementById("melpomene")
-READER_CONTENT_FRAME = document.getElementById("melpomene-content-frame")
-READER_PAGES = document.getElementById("melpomene-pages")
-FOCUS_OVERLAY_HEIGHT = document.getElementById("melpomene-focus")
-FOCUS_OVERLAY_WIDTH = document.getElementById("melpomene-focus-col")
-HELP_CONTROLS = document.getElementById("melpomene-help-menu")
-PROGRESS_BAR_CONTAINER = document.getElementById("melpomene-progress-container")
-PROGRESS_BAR = document.getElementById("melpomene-progress-bar")
-PROGRESS_BAR_PAGES = document.getElementById("melpomene-progress-sections")
-VERSION_DISPLAY = document.getElementById("melpomene-version")
+const READER_FRAME = document.getElementById("melpomene");
+const READER_CONTENT_FRAME = document.getElementById("melpomene-content-frame");
+const READER_PAGES = document.getElementById("melpomene-pages");
+const FOCUS_OVERLAY_HEIGHT = document.getElementById("melpomene-focus");
+const FOCUS_OVERLAY_WIDTH = document.getElementById("melpomene-focus-col");
+const HELP_CONTROLS = document.getElementById("melpomene-help-menu");
+const PROGRESS_BAR_CONTAINER = document.getElementById("melpomene-progress-container");
+const PROGRESS_BAR = document.getElementById("melpomene-progress-bar");
+const PROGRESS_BAR_PAGES = document.getElementById("melpomene-progress-sections");
+const VERSION_DISPLAY = document.getElementById("melpomene-version");
+
+// ====================
+//   INDEX CONSTANTS
+// ====================
+
+const ZOOM_PAGE_INDEX = 0;
+const ZOOM_WIDTH_INDEX = 1;
+const ZOOM_HEIGHT_INDEX = 2;
+const ZOOM_X_INDEX = 3;
+const ZOOM_Y_INDEX = 4;

 // ===========================
 //   STATES GLOBAL VARIABLES
 // ===========================

+let PAGES_ZOOMS;
 // The variable ZOOMS can either be defined by another JS file or contructed at init
-if (typeof PAGES_ZOOMS == 'undefined') {
-    PAGES_ZOOMS = null
+if (typeof PAGES_ZOOMS === "undefined")
+{
+    PAGES_ZOOMS = null;
 }

-CURRENT_ZOOM = 0
-CURRENT_PAGE = 1
-CURRENT_WIDTH = 0
-CURRENT_HEIGHT = 0
-CURRENT_X = 0
-CURRENT_Y = 0
+let CURRENT_ZOOM = 0;
+let CURRENT_PAGE = 1;
+let CURRENT_WIDTH = 0;
+let CURRENT_HEIGHT = 0;
+let CURRENT_X = 0;
+let CURRENT_Y = 0;

-IS_PAGE_MODE = false
-MOUSEWHELL_WAIT = false
+let IS_PAGE_MODE = false;
+let MOUSEWHELL_WAIT = false;

 // =============
 //   UTILITIES
 // =============

-// Zooms utilites
-// --------------
-
-function globalZoomScale(){
-    
-    if (READER_PAGES.dataset.globalZoomScale != undefined){
-        return parseFloat(READER_PAGES.dataset.globalZoomScale)
-    }
-    
-    return 1.0
-}
-
-function globalZoomOffsetX(){
-    
-    if (READER_PAGES.dataset.globalZoomOffset != undefined){
-        return parseFloat(READER_PAGES.dataset.globalZoomOffset.split(',')[0])
-    }
-    
-    return 0.0
-}
-
-function globalZoomOffsetY(){
-    
-    if (READER_PAGES.dataset.globalZoomOffset != undefined){
-        return parseFloat(READER_PAGES.dataset.globalZoomOffset.split(',')[1])
-    }
-    
-    return 0.0
-}
-
-function loadZoomsFromImgTagsIfRequired(){
-    
-    // Zooms may be defined by another JS file
-    if (PAGES_ZOOMS == null){
-        
-        PAGES_ZOOMS = []
-        
-        // parse the data-zooms of each img and and the page number info
-        for (var i = 0; i < READER_PAGES.children.length; i++) {
-            
-            zooms_raw_data = READER_PAGES.children[i].dataset.zooms
-            
-            // ';' separates zooms data, ',' separates values
-            // We add the page number (adding 1 because of indexing)
-            zooms = zooms_raw_data.split(";").map(
-                zoom => [i + 1].concat(
-                    zoom.split(',').map(
-                        value => parseFloat(value)
-                    )
-                )
-            )
-            
-            PAGES_ZOOMS = PAGES_ZOOMS.concat(zooms)
-        }
-        
-    }
-    
-}
-
-function getFirstZoomOfPage(pageNumber){
-   
-    for (var zoom_idx = 0; zoom_idx < PAGES_ZOOMS.length; zoom_idx++){
-        if (PAGES_ZOOMS[zoom_idx][0] == pageNumber) {
-            return zoom_idx
-        }
-    }
-}
-
-function getLastZoomOfPage(pageNumber){
-    let res = null
-    
-    for (var zoom_idx = 0; zoom_idx < PAGES_ZOOMS.length; zoom_idx++){
-        if (PAGES_ZOOMS[zoom_idx][0] == pageNumber) {
-            res = zoom_idx
-        }
-        
-        if (res != null && PAGES_ZOOMS[zoom_idx][0] != pageNumber) {
-            break
-        }
-    }
-    
-    return res
-}
-
-function getZoomCountForPage(pageNumber) {
-    return PAGES_ZOOMS.filter(zoom => zoom[0] == pageNumber).length
-}
-
-function getCurrentZoomIndexForPage() {
-    previousZoomsCount = PAGES_ZOOMS.filter(zoom => zoom[0] < CURRENT_PAGE).length
-    return CURRENT_ZOOM - previousZoomsCount + 1
-}
-
-function getReadingProgressPercent() {
-    progressPerPage = 1 / getPagesCount()
-    
-    if (IS_PAGE_MODE){
-        return 100 * progressPerPage * CURRENT_PAGE
-    }
-    
-    progressPerZoom = progressPerPage / getZoomCountForPage(CURRENT_PAGE)
-    
-    readingProgress = (CURRENT_PAGE - 1) * progressPerPage + getCurrentZoomIndexForPage() * progressPerZoom
-    
-    return 100 * readingProgress
-}
-
-function updateProgressBar(){
-    PROGRESS_BAR.style.width = getReadingProgressPercent() + "%"
-}
-
 // Dimensions utilites
 // -------------------

-function getPagesCount() {
-    return READER_PAGES.childElementCount
+function getPagesCount()
+{
+    return READER_PAGES.childElementCount;
 }

-function pageOriginalHeight(pageNumber) {
-    return READER_PAGES.children[pageNumber - 1].height
+function pageOriginalHeight(pageNumber)
+{
+    return READER_PAGES.children[pageNumber - 1].naturalHeight;
 }

-function pageOriginalWidth(pageNumber) {
-    return READER_PAGES.children[pageNumber - 1].width
+function pageOriginalWidth(pageNumber)
+{
+    return READER_PAGES.children[pageNumber - 1].naturalWidth;
 }

-function readerFrameRatio() {
-    return READER_CONTENT_FRAME.clientWidth / READER_CONTENT_FRAME.clientHeight
+function readerFrameRatio()
+{
+    return READER_CONTENT_FRAME.clientWidth / READER_CONTENT_FRAME.clientHeight;
 }

-function pageRatio(pageNumber) {
-    return READER_PAGES.children[pageNumber - 1].width / READER_PAGES.children[pageNumber - 1].height
-}
+function pageMaxHeight()
+{
+    let maxHeight = 0;

-function pageMaxHeight(){
-    let max_height = 0
-    
-    for (var i = 0; i < READER_PAGES.children.length; i++) {
-        if(READER_PAGES.children[i].height > max_height){
-            max_height = READER_PAGES.children[i].height
+    for (let pageIdx = 0; pageIdx < READER_PAGES.children.length; pageIdx += 1)
+    {
+        if (READER_PAGES.children[pageIdx].naturalHeight > maxHeight)
+        {
+            maxHeight = READER_PAGES.children[pageIdx].naturalHeight;
        }
    }

-    return max_height
+    return maxHeight;
 }

-function pageVerticalOffset(pageNumber) {
-    return ( pageMaxHeight() - pageOriginalHeight(pageNumber) ) / 2
+function pageVerticalOffset(pageNumber)
+{
+    return (pageMaxHeight() - pageOriginalHeight(pageNumber)) / 2;
 }

-function previousPagesWidth(pageNumber) {
+function previousPagesWidth(pageNumber)
+{
    // The width of all previous pages relative to the provided index

-    let totalWidth = 0
+    let totalWidth = 0;

-    for (let idx = 0; idx < pageNumber - 1; idx++){
-        totalWidth = totalWidth + READER_PAGES.children[idx].width
+    for (let idx = 0; idx < pageNumber - 1; idx += 1)
+    {
+        totalWidth += READER_PAGES.children[idx].naturalWidth;
    }

-    return totalWidth
+    return totalWidth;
+}
+
+// Zooms utilites
+// --------------
+
+function globalZoomScale()
+{
+    if (READER_PAGES.dataset.globalZoomScale !== undefined)
+    {
+        return parseFloat(READER_PAGES.dataset.globalZoomScale);
+    }
+
+    return 1.0;
+}
+
+function globalZoomOffsetX()
+{
+    if (READER_PAGES.dataset.globalZoomOffset !== undefined)
+    {
+        return parseFloat(READER_PAGES.dataset.globalZoomOffset.split(",")[0]);
+    }
+
+    return 0.0;
+}
+
+function globalZoomOffsetY()
+{
+    if (READER_PAGES.dataset.globalZoomOffset !== undefined)
+    {
+        return parseFloat(READER_PAGES.dataset.globalZoomOffset.split(",")[1]);
+    }
+
+    return 0.0;
+}
+
+function loadZoomsFromImgTagsIfRequired()
+{
+    // Zooms may be defined by another JS file
+    if (PAGES_ZOOMS === null)
+    {
+        PAGES_ZOOMS = [];
+
+        // parse the data-zooms of each img and and the page number info
+        for (let idx = 0; idx < READER_PAGES.children.length; idx += 1)
+        {
+            const zoomsRawData = READER_PAGES.children[idx].dataset.zooms;
+
+            // ";" separates zooms data, "," separates values
+            // We add the page number (adding 1 because of indexing)
+            const zooms = zoomsRawData.split(";").map(
+                (zoom) => [idx + 1].concat(
+                    zoom.split(",").map(
+                        (value) => parseFloat(value)
+                    )
+                )
+            );
+
+            PAGES_ZOOMS = PAGES_ZOOMS.concat(zooms);
+        }
+    }
+}
+
+function getFirstZoomOfPage(pageNumber)
+{
+    for (let zoomIdx = 0; zoomIdx < PAGES_ZOOMS.length; zoomIdx += 1)
+    {
+        if (PAGES_ZOOMS[zoomIdx][0] === pageNumber)
+        {
+            return zoomIdx;
+        }
+    }
+
+    return undefined;
+}
+
+function getZoomCountForPage(pageNumber)
+{
+    return PAGES_ZOOMS.filter((zoom) => zoom[0] === pageNumber).length;
+}
+
+function getCurrentZoomIndexForPage()
+{
+    const previousZoomsCount = PAGES_ZOOMS.filter((zoom) => zoom[0] < CURRENT_PAGE).length;
+    return CURRENT_ZOOM - previousZoomsCount + 1;
+}
+
+function getReadingProgressPercent()
+{
+    const progressPerPage = 1 / getPagesCount();
+
+    if (IS_PAGE_MODE)
+    {
+        return 100 * progressPerPage * CURRENT_PAGE;
+    }
+
+    const progressPerZoom = progressPerPage / getZoomCountForPage(CURRENT_PAGE);
+
+
+    let readingProgress = (CURRENT_PAGE - 1) * progressPerPage;
+    readingProgress += getCurrentZoomIndexForPage() * progressPerZoom;
+
+    return 100 * readingProgress;
+}
+
+function updateProgressBar()
+{
+    PROGRESS_BAR.style.width = `${getReadingProgressPercent()}%`;
 }

 // =========
 //  ACTIONS
 // =========

-function initReader(){
-    loadZoomsFromImgTagsIfRequired()
-    moveReaderDisplayToZoom(0)
-    
-    // Smoothly show pictures when they intersect with the viewport
-    let visibilityObserver = new IntersectionObserver((entries, observer) => {
-        entries.forEach((entry) => {
-            if (entry.isIntersecting) {
-                entry.target.style.opacity = 1
-                entry.target.style.visibility = "visible"
-            } else {
-                entry.target.style.opacity = 0
-                entry.target.style.visibility = "hidden"
-            }
-        });
-    }, { root: READER_CONTENT_FRAME, rootMargin: "-10px" });
-    
-    for (var i = 0; i < READER_PAGES.children.length; i++) {
-        let img = READER_PAGES.children[i];
-        visibilityObserver.observe(img)
-        
-        PROGRESS_BAR_PAGES.appendChild(document.createElement("div"))
+function updateFocusByWidth(width)
+{
+    FOCUS_OVERLAY_WIDTH.style.width = `${width / READER_CONTENT_FRAME.clientWidth * 100}%`;
+    FOCUS_OVERLAY_HEIGHT.style.height = "100%";
 }

-    READER_PAGES.style.display = "flex"
-    
-    setTimeout(() => {
-        READER_PAGES.hidden = false
-    }, "300")
-    
-    setTimeout(() => {
-        HELP_CONTROLS.style.opacity = null;
-        HELP_CONTROLS.style.transform = null;
-    }, DELAY_BEFORE_HIDDING_CONTROLS)
+function updateFocusByHeight(height)
+{
+    FOCUS_OVERLAY_WIDTH.style.width = "100%";
+    FOCUS_OVERLAY_HEIGHT.style.height = `${height / READER_CONTENT_FRAME.clientHeight * 100}%`;
 }

-
-function moveReaderDisplayToArea(pageNumber, width, height, posx, posy){
-    
+function moveReaderDisplayToArea(pageNumber, oWidth, oHeight, oPosx, oPosy)
+{
    // Keep original values for registering
-    o_width = width
-    o_height = height
-    o_posx = posx
-    o_posy = posy
+    let width = oWidth;
+    let height = oHeight;
+    let posx = oPosx;
+    let posy = oPosy;

    // Apply global offsets before scales if we are displaying a zoom
    // Pages display uses width & height = 0
-    if (width != 0 || height != 0){
-        width = width * globalZoomScale()
-        height = height * globalZoomScale()
-        posx = (posx + globalZoomOffsetX()) * globalZoomScale()
-        posy = (posy + globalZoomOffsetY()) * globalZoomScale()
+    if (width !== 0 || height !== 0)
+    {
+        width = width * globalZoomScale();
+        height = height * globalZoomScale();
+        posx = (posx + globalZoomOffsetX()) * globalZoomScale();
+        posy = (posy + globalZoomOffsetY()) * globalZoomScale();
    }

    // reduce width if offset sent us outside of page
-    if (posx < 0) {
-        width = width + posx
-        posx = 0
+    if (posx < 0)
+    {
+        width = width + posx;
+        posx = 0;
    }
-    if ((posx + width) > pageOriginalWidth(pageNumber)) {
-        width = pageOriginalWidth(pageNumber) - posx
+
+    if (posx + width > pageOriginalWidth(pageNumber))
+    {
+        width = pageOriginalWidth(pageNumber) - posx;
    }

    // reduce height if offset sent us outside of page
-    if (posy < 0) {
-        height = height + posy
-        posy = 0
+    if (posy < 0)
+    {
+        height = height + posy;
+        posy = 0;
    }
-    if ((posy + height) > pageOriginalHeight(pageNumber)) {
-        height = pageOriginalHeight(pageNumber) - posy
+
+    if (posy + height > pageOriginalHeight(pageNumber))
+    {
+        height = pageOriginalHeight(pageNumber) - posy;
    }


    // Align the top-left corner of the frame with the page
-    READER_PAGES.style.transform = "translate(-" + previousPagesWidth(pageNumber) + "px, -" + pageVerticalOffset(pageNumber) + "px )"
+    READER_PAGES.style.transform = `translate(-${previousPagesWidth(pageNumber)}px, -${pageVerticalOffset(pageNumber)}px)`;

    // Then move so the top-left point of the zoom match the frame top-left
-    READER_PAGES.style.transform = "translate(" + (- posx) + "px, " + (-posy) + "px )" + READER_PAGES.style.transform
+    READER_PAGES.style.transform = `translate(${-posx}px, ${-posy}px) ${READER_PAGES.style.transform}`;

    // Then, scale so the zoom would fit the frame, and center the zoom
-    if (width == 0){
-        width = pageOriginalWidth(pageNumber)
+    if (width === 0)
+    {
+        width = pageOriginalWidth(pageNumber);
    }

-    if (height == 0){
-        height = pageOriginalHeight(pageNumber)
+    if (height === 0)
+    {
+        height = pageOriginalHeight(pageNumber);
    }

-    zoomRatio = width / height
+    const zoomRatio = width / height;

-    if (readerFrameRatio() > zoomRatio) {
+    if (readerFrameRatio() > zoomRatio)
+    {
        // Frame wider than zoom => scale so heights are the same, offset on x
-        var zoomToFrameScaleFactor = READER_CONTENT_FRAME.clientHeight / height
+        const zoomToFrameScaleFactor = READER_CONTENT_FRAME.clientHeight / height;

-        READER_PAGES.style.transform = "scale(" + zoomToFrameScaleFactor + ")" + READER_PAGES.style.transform
+        READER_PAGES.style.transform = `scale(${zoomToFrameScaleFactor}) ${READER_PAGES.style.transform}`;

-        var scaledWidth = width * zoomToFrameScaleFactor
-        var offset = (READER_CONTENT_FRAME.clientWidth - scaledWidth) / 2
+        const scaledWidth = width * zoomToFrameScaleFactor;
+        const offset = (READER_CONTENT_FRAME.clientWidth - scaledWidth) / 2;

-        READER_PAGES.style.transform = "translateX(" + offset + "px)" + READER_PAGES.style.transform
+        READER_PAGES.style.transform = `translateX(${offset}px) ${READER_PAGES.style.transform}`;

-        updateFocusByWidth(scaledWidth)
-    } else {
+        updateFocusByWidth(scaledWidth);
+    }
+
+    else
+    {
        // Frame narower than zoom => scale so left/right match, offset on y
-        var zoomToFrameScaleFactor = READER_CONTENT_FRAME.clientWidth / width 
+        const zoomToFrameScaleFactor = READER_CONTENT_FRAME.clientWidth / width;

-        READER_PAGES.style.transform = "scale(" + zoomToFrameScaleFactor + ")" + READER_PAGES.style.transform
+        READER_PAGES.style.transform = `scale(${zoomToFrameScaleFactor}) ${READER_PAGES.style.transform}`;

-        var scaledHeight = height * zoomToFrameScaleFactor
-        var offset = (READER_CONTENT_FRAME.clientHeight - scaledHeight) / 2
+        const scaledHeight = height * zoomToFrameScaleFactor;
+        const offset = (READER_CONTENT_FRAME.clientHeight - scaledHeight) / 2;

-        READER_PAGES.style.transform = "translateY(" + offset + "px)" + READER_PAGES.style.transform
+        READER_PAGES.style.transform = `translateY(${offset}px) ${READER_PAGES.style.transform}"`;

-        updateFocusByHeight(scaledHeight)
+        updateFocusByHeight(scaledHeight);
    }

    // Use values before global offset / scale
-    CURRENT_PAGE = pageNumber
-    CURRENT_WIDTH = o_width
-    CURRENT_HEIGHT = o_height
-    CURRENT_X = o_posx
-    CURRENT_Y = o_posy
+    CURRENT_PAGE = pageNumber;
+    CURRENT_WIDTH = oWidth;
+    CURRENT_HEIGHT = oHeight;
+    CURRENT_X = oPosx;
+    CURRENT_Y = oPosy;
 }

-function refreshReaderDisplay() {
-    moveReaderDisplayToArea(CURRENT_PAGE, CURRENT_WIDTH, CURRENT_HEIGHT, CURRENT_X, CURRENT_Y)
+function refreshReaderDisplay()
+{
+    moveReaderDisplayToArea(
+        CURRENT_PAGE,
+        CURRENT_WIDTH,
+        CURRENT_HEIGHT,
+        CURRENT_X,
+        CURRENT_Y
+    );
 }

-function moveReaderDisplayToPage(pageNumber) {
-    moveReaderDisplayToArea(pageNumber, 0, 0, 0, 0)
+function moveReaderDisplayToPage(pageNumber)
+{
+    moveReaderDisplayToArea(pageNumber, 0, 0, 0, 0);
 }

-function moveReaderDisplayToZoom(index) {
+function moveReaderDisplayToZoom(zoomIdx)
+{
+    moveReaderDisplayToArea(
+        PAGES_ZOOMS[zoomIdx][ZOOM_PAGE_INDEX],
+        PAGES_ZOOMS[zoomIdx][ZOOM_WIDTH_INDEX],
+        PAGES_ZOOMS[zoomIdx][ZOOM_HEIGHT_INDEX],
+        PAGES_ZOOMS[zoomIdx][ZOOM_X_INDEX],
+        PAGES_ZOOMS[zoomIdx][ZOOM_Y_INDEX]
+    );

-    moveReaderDisplayToArea(PAGES_ZOOMS[index][0], PAGES_ZOOMS[index][1], PAGES_ZOOMS[index][2], PAGES_ZOOMS[index][3], PAGES_ZOOMS[index][4])
-    
-    CURRENT_ZOOM = index
+    CURRENT_ZOOM = zoomIdx;
 }

-function updateFocusByWidth(width){
-    FOCUS_OVERLAY_WIDTH.style.width = (width / READER_CONTENT_FRAME.clientWidth * 100) + "%"
-    FOCUS_OVERLAY_HEIGHT.style.height = "100%"
+function toggleViewMode()
+{
+    if (IS_PAGE_MODE)
+    {
+        if (CURRENT_ZOOM === null)
+        {
+            moveReaderDisplayToZoom(getFirstZoomOfPage(CURRENT_PAGE));
        }

-function updateFocusByHeight(height){
-    FOCUS_OVERLAY_WIDTH.style.width = "100%"
-    FOCUS_OVERLAY_HEIGHT.style.height = (height / READER_CONTENT_FRAME.clientHeight * 100) + "%"
+        else
+        {
+            moveReaderDisplayToZoom(CURRENT_ZOOM);
        }

-function toggleViewMode() {
-    if (IS_PAGE_MODE){
-        if (CURRENT_ZOOM != null){
-            moveReaderDisplayToZoom(CURRENT_ZOOM)
-        } else {
-            moveReaderDisplayToZoom(getFirstZoomOfPage(CURRENT_PAGE))
-        }
-        IS_PAGE_MODE = false
-    } else {
-        moveReaderDisplayToPage(CURRENT_PAGE)
-        IS_PAGE_MODE = true
+        IS_PAGE_MODE = false;
    }

-    updateProgressBar()
+    else
+    {
+        moveReaderDisplayToPage(CURRENT_PAGE);
+        IS_PAGE_MODE = true;
    }

-function moveReader(to_next) {
-        
-    if (IS_PAGE_MODE){
-        if (to_next && CURRENT_PAGE < getPagesCount()) {
-            moveReaderDisplayToPage(CURRENT_PAGE + 1)
-            CURRENT_ZOOM = null
+    updateProgressBar();
 }

-        else if (!to_next && CURRENT_PAGE > 1) {
-            moveReaderDisplayToPage(CURRENT_PAGE - 1)
-            CURRENT_ZOOM = null
+function moveReader(toNext)
+{
+    if (IS_PAGE_MODE)
+    {
+        if (toNext && CURRENT_PAGE < getPagesCount())
+        {
+            moveReaderDisplayToPage(CURRENT_PAGE + 1);
+            CURRENT_ZOOM = null;
        }

-    } else {
-    
-        if (to_next && CURRENT_ZOOM < PAGES_ZOOMS.length - 1) {
-            moveReaderDisplayToZoom(CURRENT_ZOOM + 1)
+        else if (!toNext && CURRENT_PAGE > 1)
+        {
+            moveReaderDisplayToPage(CURRENT_PAGE - 1);
+            CURRENT_ZOOM = null;
        }

-        else if (!to_next && CURRENT_ZOOM > 0) {
-            moveReaderDisplayToZoom(CURRENT_ZOOM - 1)
+        updateProgressBar();
+    }
+
+    // Zoom mode
+    else
+    {
+        if (toNext && CURRENT_ZOOM < PAGES_ZOOMS.length - 1)
+        {
+            moveReaderDisplayToZoom(CURRENT_ZOOM + 1);
+        }
+
+        else if (!toNext && CURRENT_ZOOM > 0)
+        {
+            moveReaderDisplayToZoom(CURRENT_ZOOM - 1);
+        }
+
+        updateProgressBar();
    }
 }

-    updateProgressBar()
+function initReader()
+{
+    VERSION_DISPLAY.innerText = VERSION_DISPLAY.innerText.replace("Unknown version", MELPOMENE_VERSION);

+    loadZoomsFromImgTagsIfRequired();
+    moveReaderDisplayToZoom(0);
+
+    // Smoothly show pictures when they intersect with the viewport
+    const visibilityObserver = new IntersectionObserver(
+        (entries, _observer) =>
+        {
+            entries.forEach((entry) =>
+            {
+                if (entry.isIntersecting)
+                {
+                    entry.target.style.opacity = 1;
+                    entry.target.style.visibility = "visible";
+                }
+
+                else
+                {
+                    entry.target.style.opacity = 0;
+                    entry.target.style.visibility = "hidden";
+                }
+            });
+        },
+        {
+            root: READER_CONTENT_FRAME,
+            rootMargin: "-10px"
+        }
+    );
+
+    for (let pageIndex = 0; pageIndex < READER_PAGES.children.length; pageIndex += 1)
+    {
+        const img = READER_PAGES.children[pageIndex];
+        visibilityObserver.observe(img);
+
+        PROGRESS_BAR_PAGES.appendChild(document.createElement("div"));
+    }
+
+    READER_PAGES.style.display = "flex";
+
+    setTimeout(
+        () => { READER_PAGES.hidden = false; },
+        "300"
+    );
+
+    setTimeout(
+        () =>
+        {
+            HELP_CONTROLS.style.opacity = null;
+            HELP_CONTROLS.style.transform = null;
+        },
+        DELAY_BEFORE_HIDDING_CONTROLS
+    );
 }


@ -425,57 +507,86 @@ function moveReader(to_next) {
 //   CALLBACKS
 // =============

-function handleKeyPress(key){
-    
-    if (key == MOVE_NEXT) {
-        moveReader(true)
+function handleKeyPress(key)
+{
+    if (key === MOVE_NEXT)
+    {
+        moveReader(true);
    }

-    else if (key == MOVE_BACK) {
-        moveReader(false)
+    else if (key === MOVE_BACK)
+    {
+        moveReader(false);
    }

-    else if (key.toUpperCase() == TOGGLE_FULLSCREEN){
-        if (document.fullscreenElement == null){
+    else if (key.toUpperCase() === TOGGLE_FULLSCREEN)
+    {
+        if (document.fullscreenElement === null)
+        {
            READER_FRAME.requestFullscreen();
-        } else {
+        }
+
+        else
+        {
            document.exitFullscreen();
        }
-        
    }

-    else if (key.toUpperCase() == TOGGLE_PROGRESSBAR){
-        if (PROGRESS_BAR_CONTAINER.hidden == true) {
-            PROGRESS_BAR_CONTAINER.hidden = false
-        } else {
-            PROGRESS_BAR_CONTAINER.hidden = true
+    else if (key.toUpperCase() === TOGGLE_PROGRESSBAR)
+    {
+        if (PROGRESS_BAR_CONTAINER.hidden === true)
+        {
+            PROGRESS_BAR_CONTAINER.hidden = false;
        }
+
+        else
+        {
+            PROGRESS_BAR_CONTAINER.hidden = true;
+        }
+
        refreshReaderDisplay();
    }

-    else if (key.toUpperCase() == TOGGLE_VIEW_MODE) {
-        toggleViewMode()
+    else if (key.toUpperCase() === TOGGLE_VIEW_MODE)
+    {
+        toggleViewMode();
+    }
 }

+function handleMouseWhell(event)
+{
+    // Only handle scroll event if the target is the nav controls
+    // to avoid preventing page scrolling.
+
+    // Do disable page scrolling when we do prev/next, though
+
+    if (!READER_FRAME.contains(event.target))
+    {
+        return;
    }

-function handleMouseWhell(deltaY){
+    event.preventDefault();
+    event.stopPropagation();

-    if (MOUSEWHELL_WAIT){
-        return
-    } else {
-        MOUSEWHELL_WAIT = true
-        setTimeout(() => {
-            MOUSEWHELL_WAIT = false
-        }, MOUSEWHELL_MIN_DELAY)
+    if (MOUSEWHELL_WAIT)
+    {
+        return;
    }

-    if (deltaY > 0) {
-        moveReader(true, false)
+    MOUSEWHELL_WAIT = true;
+    setTimeout(
+        () => { MOUSEWHELL_WAIT = false; },
+        MOUSEWHELL_MIN_DELAY
+    );
+
+    if (event.deltaY > 0)
+    {
+        moveReader(true, false);
    }

-    else {
-        moveReader(false, false)
+    else
+    {
+        moveReader(false, false);
    }
 }

@ -483,19 +594,26 @@ function handleMouseWhell(deltaY){
 //  INIT
 // ======

-window.addEventListener("load", (event) => {
-  VERSION_DISPLAY.innerText = VERSION_DISPLAY.innerText.replace("Unknown version", MELPOMENE_VERSION)
-  initReader()
-});
+window.addEventListener(
+    "load",
+    (_event) => { initReader(); }
+);

-addEventListener("resize", (event) => {
-    refreshReaderDisplay();
-});
+addEventListener(
+    "resize",
+    (_event) => { refreshReaderDisplay(); }
+);

-addEventListener("keydown", (event) => {
-    handleKeyPress(event.key, event.shiftKey)
-});
+addEventListener(
+    "keydown",
+    (event) =>
+    {
+        handleKeyPress(event.key, event.shiftKey);
+    }
+);

-addEventListener("wheel", (event) => {
-    handleMouseWhell(event.deltaY)
-});
+addEventListener(
+    "wheel",
+    (event) => { handleMouseWhell(event); },
+    { passive: false }
+);
--- a/zooms_generator.py
+++ b/zooms_generator.py
@ -3,10 +3,10 @@
 # CC-BY-NC-SA https://git.aribaud.net/caribaud/melpomene/

 import sys
-import re
-import xml.etree.ElementTree as ET
-import argparse
-
+from argparse import ArgumentParser
+from xml.etree import ElementTree
+from xml.etree.ElementTree import Element
+from typing import Any
 from pathlib import Path


@ -14,59 +14,84 @@ HTML_TEMPLATE = Path(__file__).parent / "melpomene.html"
 HTML_TO_REPLACE = "<!-- your img tags here, see documentation -->"


-def extract_zooms(src_folder):
+def get_val_has_str(elem: Element, attrib: str, filepath: str | Path) -> str:
+    value = elem.get(attrib)
+
+    if value is None:
+        sys.exit(f"Attribute '{attrib}' is not valid in file {filepath}")
+
+    return str(value)
+
+
+def extract_zooms(src_folder) -> dict[int, Any]:
    folder = Path(src_folder)

-    zooms = {}
-    
-    max_width = 0
-    max_height = 0
+    pages_zooms: dict[int, Any] = {}

    idx = 0

    for svg_path in folder.glob("*.svg"):
-        
        idx += 1

        print(f"page {idx} : {svg_path.name}")

-        zooms[idx] = {
+        # Setting up default values
+        pages_zooms[idx] = {
            "name": svg_path.stem,
            "width": 0,
            "height": 0,
            "zooms": [],
        }

-        tree = ET.parse(svg_path)
+        tree = ElementTree.parse(svg_path)
        root = tree.getroot()

-        zooms[idx]["width"] = int(root.get("width"))
-        zooms[idx]["height"] = int(root.get("height"))
+        width = get_val_has_str(root, "width", svg_path)
+        height = get_val_has_str(root, "height", svg_path)

-        for area in root.findall('.//{*}rect'):
-            zooms[idx]["zooms"].append([
-                float(area.get("width")),
-                float(area.get("height")),
-                float(area.get("x")),
-                float(area.get("y")),
-            ])
+        if "." in width:
+            print(
+                f"WARNING: file {svg_path} has a floating width, it will be rounded",
+                file=sys.stderr,
+            )
+        pages_zooms[idx]["width"] = round(float(width))

-    return zooms, max_width, max_height
+        if "." in height:
+            print(
+                f"WARNING: file {svg_path} has a floating height, it will be rounded",
+                file=sys.stderr,
+            )
+        pages_zooms[idx]["height"] = round(float(height))
+
+        zooms = []
+        for area in root.findall(".//{*}rect"):
+            zooms.append(
+                [
+                    float(get_val_has_str(area, "width", svg_path)),
+                    float(get_val_has_str(area, "height", svg_path)),
+                    float(get_val_has_str(area, "x", svg_path)),
+                    float(get_val_has_str(area, "y", svg_path)),
+                ]
+            )
+
+        pages_zooms[idx]["zooms"] = zooms
+
+    return pages_zooms


-def write_json_or_js(zooms, dest_file, is_js):
-
-    with open(dest_file, "w") as data_file:
-    
+def write_json_or_js(zooms, dest_file, is_js) -> None:
+    with open(dest_file, "w", encoding="UTF-8") as data_file:
        if is_js:
            data_file.write("PAGES_ZOOMS = ")
        data_file.write("[\n")
        first_coma_skiped = False
        for page_idx in sorted(zooms.keys()):
            for zoom in zooms[page_idx]["zooms"]:
-            
                if zoom[2] < 0 or zoom[3] < 0:
-                    print(f"WARNING: negative pos x / pos y in page {page_idx} for zoom {zoom} (is the rectangle flipped?)")
+                    print(
+                        f"WARNING: negative pos x / pos y in page {page_idx} for "
+                        f"zoom {zoom} (is the rectangle flipped?)"
+                    )

                if first_coma_skiped:
                    data_file.write(",\n")
@ -76,45 +101,71 @@ def write_json_or_js(zooms, dest_file, is_js):
        data_file.write("\n]\n")


-def write_html(zooms, dest_file, pages_width, pages_height, prefix, extention):
-    
+def write_html(zooms, dest_file, prefix, extention) -> None:
    img_tags = ""
    for page_idx in sorted(zooms.keys()):
        img_url = f"{prefix}{zooms[page_idx]['name']}.{extention}"
-        zoom_html_data = [','.join([str(zoom) for zoom in page_zooms]) for page_zooms in zooms[page_idx]["zooms"]]
-        zoom_html_str = ';'.join(zoom_html_data)
-        img_tags = img_tags + f'            <img loading="lazy" height="{zooms[page_idx]["height"]}" width="{zooms[page_idx]["width"]}" src="{img_url}" data-zooms="{zoom_html_str}"/>\n'
+        zoom_html_data = [
+            ",".join([str(zoom) for zoom in page_zooms])
+            for page_zooms in zooms[page_idx]["zooms"]
+        ]
+        zoom_html_str = ";".join(zoom_html_data)
+        img_tags = (
+            img_tags
+            + "            "
+            + f'<img loading="lazy" height="{zooms[page_idx]["height"]}" '
+            + f'width="{zooms[page_idx]["width"]}" src="{img_url}" '
+            + f'data-zooms="{zoom_html_str}"/>\n'
+        )

    img_tags = img_tags.strip()

-    with open(HTML_TEMPLATE) as template_file, open(dest_file, "w") as data_file:
-        
+    with open(HTML_TEMPLATE, "r", encoding="UTF-8") as template_file, open(
+        dest_file, "w", encoding="UTF-8"
+    ) as data_file:
        data = template_file.read().replace(HTML_TO_REPLACE, img_tags)

        data_file.write(data)


-def generate_argparse():
+def generate_argparse() -> ArgumentParser:
    """Generate Melpomene's generator input parser"""

-    parser = argparse.ArgumentParser(
-        description="Helper that can generate JSON / JS / HTML files for Melpomene webcomic reader"
+    parser = ArgumentParser(
+        description=(
+            "Helper that can generate JSON / JS / "
+            "HTML files for Melpomene webcomic reader"
+        )
    )

-    parser.add_argument("output_format", choices=["html", "json", "js"], help="The type of output to generate")
+    parser.add_argument(
+        "output_format",
+        choices=["html", "json", "js"],
+        help="The type of output to generate",
+    )
    parser.add_argument("svg_folders", help="Path of the folder containing the SVGs")
-    parser.add_argument("-o", metavar="dest_file", help="Where to write the generator output to")
-    parser.add_argument("-p", default="", metavar="img_url_prefix", help="What to prefix the URL of the images when using HTML format.")
-    parser.add_argument("-e", default="png", metavar="img_ext", help="What extention to use in the URL of the images when using HTML format.")
+    parser.add_argument(
+        "-o", metavar="dest_file", help="Where to write the generator output to"
+    )
+    parser.add_argument(
+        "-p",
+        default="",
+        metavar="img_url_prefix",
+        help="What to prefix the URL of the images when using HTML format.",
+    )
+    parser.add_argument(
+        "-e",
+        default="png",
+        metavar="img_ext",
+        help="What extention to use in the URL of the images when using HTML format.",
+    )

    return parser


-if __name__ == "__main__":
-
+def run():
    args = generate_argparse().parse_args()

-    
    # Get the final outout name
    output = None

@ -132,13 +183,17 @@ if __name__ == "__main__":
    elif args.output_format == "js" and not output.endswith(".js"):
        output += ".js"

-    zooms, max_width, max_height = extract_zooms(args.svg_folders)
+    zooms = extract_zooms(args.svg_folders)

    if args.output_format == "html":
-        write_html(zooms, output, max_width, max_height, args.p, args.e)
+        write_html(zooms, output, args.p, args.e)

    elif args.output_format == "json":
        write_json_or_js(zooms, output, False)

    elif args.output_format == "js":
        write_json_or_js(zooms, output, True)
+
+
+if __name__ == "__main__":
+    run()
Author	SHA1	Message	Date
caribaud	426c18bfef	Merge pull request 'Added pipenv files to offer a consistent python environment, including quality.' (#20 ) from issues/14 into release/1.0.0 Reviewed-on: #20 Reviewed-by: caribaud <christian@aribaud.net>	2023-06-25 11:32:29 +02:00
Kronk	757ff3a7c7	Fixed vscode settings markdown.	2023-06-25 11:24:14 +02:00
Kronk	25cb269334	Added VSCode settings to README. Added .vscode to .gitignore.	2023-06-25 11:13:44 +02:00
Christian Aribaud	ce00b327bb	fixing prospector findings in zoom generator	2023-06-25 10:37:59 +02:00
Christian Aribaud	7e52c5a532	Running black on python files	2023-06-25 09:20:38 +02:00
Christian Aribaud	3d7428e76f	Adding info regarding python quality checking	2023-06-25 09:20:06 +02:00
Kronk	cb3c17c5db	Added pipenv files to offer a consistent python environment. Includes Python version, with black and prospector in the dev packages.	2023-06-24 23:35:42 +02:00
caribaud	21e17a294e	more corrections	2023-06-18 17:50:09 +02:00
Kronk	b3fddef4e0	Added script to update version in headers and variables.	2023-06-18 17:05:36 +02:00
caribaud	b12cf2c4f1	new eslint fixes run	2023-06-05 00:40:25 +02:00
caribaud	5a1987f77b	single quote -> double quote	2023-06-05 00:20:32 +02:00
caribaud	f1cfb326d5	Fix declaration order	2023-06-05 00:19:28 +02:00
caribaud	7299157521	new round of fixing eslint findings	2023-06-05 00:16:02 +02:00
caribaud	c6f88e8d85	fix trailling whitespace	2023-06-04 21:38:56 +02:00
caribaud	f87f6c75f5	Fixing unused functions and params	2023-06-04 21:37:56 +02:00
caribaud	ca0f9f4e59	Fixing Dockerfile to match with Readme.md	2023-06-04 20:57:51 +02:00
Christian Aribaud	c8451c07aa	Adding info about ESLint in README.md	2023-06-04 20:46:43 +02:00
caribaud	5f3060995b	Rework melpomene to respect newly added ESLINT This includes: + Removing trailling whitespaces + Adding missing const keywords + Fixing equality checks + Removing unused variables, functions, etc... + Adding missing let & const statements + Use strict + Correcting all names to use camelCase + Using semicolons everywhere + Use Allman style everywhere + Make comments headers uniform This also includes: + Fixing displayed version number	2023-06-04 20:16:56 +02:00
caribaud	230abf08e8	Adding eslint	2023-06-04 20:16:55 +02:00
caribaud	5f8d8873b3	Warn about floating height/width and round them Closes #8	2023-05-27 16:16:49 +02:00
caribaud	81be7d477b	Prevent external CSS img interferences Closes #10	2023-05-27 16:02:06 +02:00
caribaud	350dd4bb0e	Fix width / height computation Closes #9	2023-05-27 15:56:31 +02:00
caribaud	c1df87582d	Change scrolling behaviour	2023-05-26 23:32:11 +02:00