mirror of
https://github.com/john-okeefe/foliate-js.git
synced 2026-09-09 11:29:14 -04:00
Implement zoom control functionality for fixed-layout e-books
This commit adds comprehensive zoom control capabilities for fixed-layout e-book content, allowing users to zoom in, out, and reset zoom levels for better readability and content inspection. Key features added: - Zoom control UI with +/- buttons and percentage display - Keyboard shortcuts for zoom operations (Ctrl/Cmd +, -, 0) - Mouse wheel zoom with Ctrl/Cmd modifier key - Drag-to-pan functionality when zoomed in - Smooth zoom transitions and state management - Zoom constraints (min/max limits) to prevent over-zooming Changes include: - FixedLayout: Enhanced with zoom state management, drag handlers, and keyboard/mouse event listeners for intuitive zoom control - Reader UI: Added zoom control toolbar with visual feedback - FixedLayout renderer integration with reader zoom controls The zoom controls provide a seamless experience for users who need to examine fixed-layout content more closely or adjust content size for their preferred reading experience.
This commit is contained in:
+219
-153
@@ -1,58 +1,61 @@
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<!DOCTYPE html>
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<meta charset="utf-8">
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<meta name="color-scheme" content="light dark">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta http-equiv="Content-Security-Policy" content="default-src 'self' blob:; script-src 'self'; style-src 'self' blob: 'unsafe-inline'; img-src 'self' blob: data:; connect-src 'self' blob: data: *; frame-src blob: data:; object-src blob: data:; form-action 'none';">
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<!doctype html>
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<meta charset="utf-8" />
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<meta name="color-scheme" content="light dark" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta
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||||
http-equiv="Content-Security-Policy"
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content="default-src 'self' blob:; script-src 'self'; style-src 'self' blob: 'unsafe-inline'; img-src 'self' blob: data:; connect-src 'self' blob: data: *; frame-src blob: data:; object-src blob: data:; form-action 'none';"
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/>
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<title>E-Book Reader</title>
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<style>
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:root {
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--active-bg: rgba(0, 0, 0, .05);
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}
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@supports (color-scheme: light dark) {
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:root {
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--active-bg: rgba(0, 0, 0, 0.05);
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}
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@supports (color-scheme: light dark) {
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@media (prefers-color-scheme: dark) {
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:root {
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--active-bg: rgba(255, 255, 255, .1);
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}
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:root {
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--active-bg: rgba(255, 255, 255, 0.1);
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}
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}
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}
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html {
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}
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html {
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height: 100%;
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}
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body {
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}
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body {
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margin: 0 auto;
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height: 100%;
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font: menu;
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font-family: system-ui, sans-serif;
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}
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#drop-target {
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}
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#drop-target {
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height: 100vh;
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display: flex;
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align-items: center;
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justify-content: center;
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text-align: center;
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visibility: hidden;
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}
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#drop-target h1 {
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}
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#drop-target h1 {
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font-weight: 900;
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}
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#file-button {
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}
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#file-button {
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font: inherit;
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background: none;
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border: 0;
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padding: 0;
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text-decoration: underline;
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cursor: pointer;
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}
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.icon {
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}
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.icon {
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display: block;
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fill: none;
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stroke: currentcolor;
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stroke-width: 2px;
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}
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.empty-state-icon {
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}
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.empty-state-icon {
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margin: auto;
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}
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.toolbar {
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}
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.toolbar {
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box-sizing: border-box;
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position: absolute;
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z-index: 1;
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@@ -64,30 +67,30 @@ body {
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padding: 6px;
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transition: opacity 250ms ease;
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visibility: hidden;
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}
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.toolbar button {
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}
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.toolbar button {
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padding: 3px;
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border-radius: 6px;
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background: none;
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border: 0;
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color: GrayText;
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}
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.toolbar button:hover {
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background: rgba(0, 0, 0, .1);
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}
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.toolbar button:hover {
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background: rgba(0, 0, 0, 0.1);
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color: currentcolor;
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}
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#header-bar {
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}
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#header-bar {
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top: 0;
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}
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#nav-bar {
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}
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#nav-bar {
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bottom: 0;
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}
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#progress-slider {
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}
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#progress-slider {
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flex-grow: 1;
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margin: 0 12px;
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visibility: hidden;
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}
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#side-bar {
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}
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#side-bar {
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visibility: hidden;
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box-sizing: border-box;
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position: absolute;
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@@ -101,15 +104,19 @@ body {
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flex-direction: column;
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background: Canvas;
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color: CanvasText;
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box-shadow: 0 0 0 1px rgba(0, 0, 0, .2), 0 0 40px rgba(0, 0, 0, .2);
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transition: visibility 0s linear 300ms, transform 300ms ease;
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}
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#side-bar.show {
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box-shadow:
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0 0 0 1px rgba(0, 0, 0, 0.2),
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0 0 40px rgba(0, 0, 0, 0.2);
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transition:
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visibility 0s linear 300ms,
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transform 300ms ease;
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}
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#side-bar.show {
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visibility: visible;
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transform: translateX(0);
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transition-delay: 0s;
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}
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#dimming-overlay {
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||||
}
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#dimming-overlay {
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visibility: hidden;
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position: fixed;
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z-index: 2;
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@@ -117,188 +124,247 @@ body {
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left: 0;
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width: 100%;
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height: 100%;
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background: rgba(0, 0, 0, .2);
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background: rgba(0, 0, 0, 0.2);
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opacity: 0;
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transition: visibility 0s linear 300ms, opacity 300ms ease;
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}
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#dimming-overlay.show {
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transition:
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visibility 0s linear 300ms,
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opacity 300ms ease;
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}
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#dimming-overlay.show {
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visibility: visible;
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opacity: 1;
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transition-delay: 0s;
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}
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#side-bar-header {
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}
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#side-bar-header {
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padding: 1rem;
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display: flex;
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border-bottom: 1px solid rgba(0, 0, 0, .1);
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border-bottom: 1px solid rgba(0, 0, 0, 0.1);
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align-items: center;
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}
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#side-bar-cover {
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||||
}
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#side-bar-cover {
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height: 10vh;
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min-height: 60px;
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max-height: 180px;
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border-radius: 3px;
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border: 0;
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background: lightgray;
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box-shadow: 0 0 1px rgba(0, 0, 0, .1), 0 0 16px rgba(0, 0, 0, .1);
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box-shadow:
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0 0 1px rgba(0, 0, 0, 0.1),
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0 0 16px rgba(0, 0, 0, 0.1);
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margin-inline-end: 1rem;
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}
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#side-bar-cover:not([src]) {
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}
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#side-bar-cover:not([src]) {
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display: none;
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}
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#side-bar-title {
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margin: .5rem 0;
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}
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#side-bar-title {
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margin: 0.5rem 0;
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font-size: inherit;
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}
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#side-bar-author {
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margin: .5rem 0;
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}
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#side-bar-author {
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margin: 0.5rem 0;
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font-size: small;
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color: GrayText;
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}
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#toc-view {
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padding: .5rem;
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}
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#toc-view {
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padding: 0.5rem;
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overflow-y: scroll;
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}
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#toc-view li, #toc-view ol {
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}
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#toc-view li,
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#toc-view ol {
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margin: 0;
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||||
padding: 0;
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list-style: none;
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}
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||||
#toc-view a, #toc-view span {
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}
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#toc-view a,
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#toc-view span {
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display: block;
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border-radius: 6px;
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padding: 8px;
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margin: 2px 0;
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||||
}
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#toc-view a {
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||||
}
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#toc-view a {
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||||
color: CanvasText;
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||||
text-decoration: none;
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||||
}
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#toc-view a:hover {
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||||
}
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#toc-view a:hover {
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||||
background: var(--active-bg);
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||||
}
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||||
#toc-view span {
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||||
}
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||||
#toc-view span {
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||||
color: GrayText;
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||||
}
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||||
#toc-view svg {
|
||||
}
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||||
#toc-view svg {
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||||
margin-inline-start: -24px;
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padding-inline-start: 5px;
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padding-inline-end: 6px;
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||||
fill: CanvasText;
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||||
cursor: default;
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||||
transition: transform .2s ease;
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opacity: .5;
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||||
}
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||||
#toc-view svg:hover {
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||||
transition: transform 0.2s ease;
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||||
opacity: 0.5;
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||||
}
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||||
#toc-view svg:hover {
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||||
opacity: 1;
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||||
}
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||||
#toc-view [aria-current] {
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||||
}
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||||
#toc-view [aria-current] {
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||||
font-weight: bold;
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||||
background: var(--active-bg);
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||||
}
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||||
#toc-view [aria-expanded="false"] svg {
|
||||
}
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||||
#toc-view [aria-expanded="false"] svg {
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||||
transform: rotate(-90deg);
|
||||
}
|
||||
#toc-view [aria-expanded="false"] + [role="group"] {
|
||||
}
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||||
#toc-view [aria-expanded="false"] + [role="group"] {
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||||
display: none;
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||||
}
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||||
.menu-container {
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||||
}
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||||
.menu-container {
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||||
position: relative;
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||||
}
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||||
.menu, .menu ul {
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||||
}
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.menu,
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.menu ul {
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||||
list-style: none;
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||||
padding: 0;
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||||
margin: 0;
|
||||
}
|
||||
.menu {
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||||
}
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||||
.menu {
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||||
visibility: hidden;
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||||
position: absolute;
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||||
right: 0;
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||||
background: Canvas;
|
||||
color: CanvasText;
|
||||
border-radius: 6px;
|
||||
box-shadow: 0 0 0 1px rgba(0, 0, 0, .2), 0 0 16px rgba(0, 0, 0, .1);
|
||||
box-shadow:
|
||||
0 0 0 1px rgba(0, 0, 0, 0.2),
|
||||
0 0 16px rgba(0, 0, 0, 0.1);
|
||||
padding: 6px;
|
||||
cursor: default;
|
||||
}
|
||||
.menu.show {
|
||||
}
|
||||
.menu.show {
|
||||
visibility: visible;
|
||||
}
|
||||
.menu li {
|
||||
}
|
||||
.menu li {
|
||||
padding: 6px 12px;
|
||||
padding-left: 24px;
|
||||
border-radius: 6px;
|
||||
}
|
||||
.menu li:hover {
|
||||
}
|
||||
.menu li:hover {
|
||||
background: var(--active-bg);
|
||||
}
|
||||
.menu li[aria-checked="true"] {
|
||||
}
|
||||
.menu li[aria-checked="true"] {
|
||||
background-position: center left;
|
||||
background-repeat: no-repeat;
|
||||
background-image: url('data:image/svg+xml;utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2224%22%20height%3D%2224%22%3E%3Ccircle%20cx%3D%2212%22%20cy%3D%2212%22%20r%3D%223%22%2F%3E%3C%2Fsvg%3E');
|
||||
}
|
||||
.popover {
|
||||
background-image: url("data:image/svg+xml;utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2224%22%20height%3D%2224%22%3E%3Ccircle%20cx%3D%2212%22%20cy%3D%2212%22%20r%3D%223%22%2F%3E%3C%2Fsvg%3E");
|
||||
}
|
||||
.popover {
|
||||
background: Canvas;
|
||||
color: CanvasText;
|
||||
border-radius: 6px;
|
||||
box-shadow: 0 0 0 1px rgba(0, 0, 0, .2), 0 0 16px rgba(0, 0, 0, .1), 0 0 32px rgba(0, 0, 0, .1);
|
||||
}
|
||||
.popover-arrow-down {
|
||||
box-shadow:
|
||||
0 0 0 1px rgba(0, 0, 0, 0.2),
|
||||
0 0 16px rgba(0, 0, 0, 0.1),
|
||||
0 0 32px rgba(0, 0, 0, 0.1);
|
||||
}
|
||||
.popover-arrow-down {
|
||||
fill: Canvas;
|
||||
filter: drop-shadow(0 -1px 0 rgba(0, 0, 0, .2));
|
||||
}
|
||||
.popover-arrow-up {
|
||||
filter: drop-shadow(0 -1px 0 rgba(0, 0, 0, 0.2));
|
||||
}
|
||||
.popover-arrow-up {
|
||||
fill: Canvas;
|
||||
filter: drop-shadow(0 1px 0 rgba(0, 0, 0, .2));
|
||||
}
|
||||
filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.2));
|
||||
}
|
||||
</style>
|
||||
<input type="file" id="file-input" hidden>
|
||||
<input type="file" id="file-input" hidden />
|
||||
<div id="drop-target" class="filter">
|
||||
<div>
|
||||
<svg class="icon empty-state-icon" width="72" height="72" aria-hidden="true">
|
||||
<path d="M36 18s-6-6-12-6-15 6-15 6v42s9-6 15-6 12 6 12 6c4-4 8-6 12-6s12 2 15 6V18c-6-4-12-6-15-6-4 0-8 2-12 6m0 0v42"/>
|
||||
</svg>
|
||||
<h1>Drop a book here!</h1>
|
||||
<p>Or <button id="file-button">choose a file</button> to open it.</p>
|
||||
</div>
|
||||
<div>
|
||||
<svg
|
||||
class="icon empty-state-icon"
|
||||
width="72"
|
||||
height="72"
|
||||
aria-hidden="true"
|
||||
>
|
||||
<path
|
||||
d="M36 18s-6-6-12-6-15 6-15 6v42s9-6 15-6 12 6 12 6c4-4 8-6 12-6s12 2 15 6V18c-6-4-12-6-15-6-4 0-8 2-12 6m0 0v42"
|
||||
/>
|
||||
</svg>
|
||||
<h1>Drop a book here!</h1>
|
||||
<p>Or <button id="file-button">choose a file</button> to open it.</p>
|
||||
</div>
|
||||
</div>
|
||||
<div id="dimming-overlay" aria-hidden="true"></div>
|
||||
<div id="side-bar">
|
||||
<div id="side-bar-header">
|
||||
<img id="side-bar-cover">
|
||||
<div>
|
||||
<h1 id="side-bar-title"></h1>
|
||||
<p id="side-bar-author"></p>
|
||||
</div>
|
||||
<div id="side-bar-header">
|
||||
<img id="side-bar-cover" />
|
||||
<div>
|
||||
<h1 id="side-bar-title"></h1>
|
||||
<p id="side-bar-author"></p>
|
||||
</div>
|
||||
<div id="toc-view"></div>
|
||||
</div>
|
||||
<div id="toc-view"></div>
|
||||
</div>
|
||||
<div id="header-bar" class="toolbar">
|
||||
<button id="side-bar-button" aria-label="Show sidebar">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M 4 6 h 16 M 4 12 h 16 M 4 18 h 16"/>
|
||||
</svg>
|
||||
<button id="side-bar-button" aria-label="Show sidebar">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M 4 6 h 16 M 4 12 h 16 M 4 18 h 16" />
|
||||
</svg>
|
||||
</button>
|
||||
<div id="menu-button" class="menu-container">
|
||||
<button aria-label="Show settings" aria-haspopup="true">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path
|
||||
d="M5 12.7a7 7 0 0 1 0-1.4l-1.8-2 2-3.5 2.7.5a7 7 0 0 1 1.2-.7L10 3h4l.9 2.6 1.2.7 2.7-.5 2 3.4-1.8 2a7 7 0 0 1 0 1.5l1.8 2-2 3.5-2.7-.5a7 7 0 0 1-1.2.7L14 21h-4l-.9-2.6a7 7 0 0 1-1.2-.7l-2.7.5-2-3.4 1.8-2Z"
|
||||
/>
|
||||
<circle cx="12" cy="12" r="3" />
|
||||
</svg>
|
||||
</button>
|
||||
<div id="menu-button" class="menu-container">
|
||||
<button aria-label="Show settings" aria-haspopup="true">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M5 12.7a7 7 0 0 1 0-1.4l-1.8-2 2-3.5 2.7.5a7 7 0 0 1 1.2-.7L10 3h4l.9 2.6 1.2.7 2.7-.5 2 3.4-1.8 2a7 7 0 0 1 0 1.5l1.8 2-2 3.5-2.7-.5a7 7 0 0 1-1.2.7L14 21h-4l-.9-2.6a7 7 0 0 1-1.2-.7l-2.7.5-2-3.4 1.8-2Z"/>
|
||||
<circle cx="12" cy="12" r="3"/>
|
||||
</svg>
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
<div id="nav-bar" class="toolbar">
|
||||
<button id="left-button" aria-label="Go left">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M 15 6 L 9 12 L 15 18"/>
|
||||
</svg>
|
||||
<button id="left-button" aria-label="Go left">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M 15 6 L 9 12 L 15 18" />
|
||||
</svg>
|
||||
</button>
|
||||
<input
|
||||
id="progress-slider"
|
||||
type="range"
|
||||
min="0"
|
||||
max="1"
|
||||
step="any"
|
||||
list="tick-marks"
|
||||
/>
|
||||
<datalist id="tick-marks"></datalist>
|
||||
<button id="right-button" aria-label="Go right">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M 9 6 L 15 12 L 9 18" />
|
||||
</svg>
|
||||
</button>
|
||||
<!-- NEW: Zoom controls -->
|
||||
<div id="zoom-controls" style="display: flex; gap: 4px; margin-left: 12px">
|
||||
<button id="zoom-out" aria-label="Zoom out" title="Zoom Out">
|
||||
<svg class="icon" width="20" height="20" aria-hidden="true">
|
||||
<path d="M 9 9 L 15 15 M 15 9 L 9 15" />
|
||||
</svg>
|
||||
</button>
|
||||
<input id="progress-slider" type="range" min="0" max="1" step="any" list="tick-marks">
|
||||
<datalist id="tick-marks"></datalist>
|
||||
<button id="right-button" aria-label="Go right">
|
||||
<svg class="icon" width="24" height="24" aria-hidden="true">
|
||||
<path d="M 9 6 L 15 12 L 9 18"/>
|
||||
</svg>
|
||||
<button
|
||||
id="zoom-reset"
|
||||
aria-label="Reset zoom"
|
||||
title="Reset Zoom"
|
||||
style="font-size: 11px"
|
||||
>
|
||||
100%
|
||||
</button>
|
||||
<button id="zoom-in" aria-label="Zoom in" title="Zoom In">
|
||||
<svg class="icon" width="20" height="20" aria-hidden="true">
|
||||
<path d="M 9 9 h 6 M 12 6 v 6" />
|
||||
</svg>
|
||||
</button>
|
||||
<button
|
||||
id="magnifier-toggle"
|
||||
aria-label="Toggle magnifier"
|
||||
title="Toggle Magnifier"
|
||||
>
|
||||
<svg class="icon" width="20" height="20" aria-hidden="true">
|
||||
<circle cx="10" cy="10" r="4" />
|
||||
<path d="M 14 14 L 18 18" />
|
||||
</svg>
|
||||
</button>
|
||||
</div>
|
||||
</div>
|
||||
<script src="reader.js" type="module"></script>
|
||||
|
||||
Reference in New Issue
Block a user