From 68af0d86c3a941e185b34926fdbc57c457466e28 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sat, 31 Aug 2019 11:51:31 -0400
Subject: Improve popup position for vertical text
---
ext/fg/js/frontend.js | 8 ++-
ext/fg/js/popup.js | 147 +++++++++++++++++++++++++++++++++++++-------------
ext/fg/js/source.js | 25 +++++++++
3 files changed, 141 insertions(+), 39 deletions(-)
(limited to 'ext/fg/js')
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 3c5f2ac8..72379062 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -301,7 +301,11 @@ class Frontend {
} catch (e) {
if (window.yomichan_orphaned) {
if (textSource && this.options.scanning.modifier !== 'none') {
- this.popup.showOrphaned(textSource.getRect(), this.options);
+ this.popup.showOrphaned(
+ textSource.getRect(),
+ textSource.getWritingMode(),
+ this.options
+ );
}
} else {
this.onError(e);
@@ -332,6 +336,7 @@ class Frontend {
const url = window.location.href;
this.popup.termsShow(
textSource.getRect(),
+ textSource.getWritingMode(),
definitions,
this.options,
{sentence, url, focus}
@@ -357,6 +362,7 @@ class Frontend {
const url = window.location.href;
this.popup.kanjiShow(
textSource.getRect(),
+ textSource.getWritingMode(),
definitions,
this.options,
{sentence, url, focus}
diff --git a/ext/fg/js/popup.js b/ext/fg/js/popup.js
index 18dc0386..138dec41 100644
--- a/ext/fg/js/popup.js
+++ b/ext/fg/js/popup.js
@@ -48,59 +48,130 @@ class Popup {
return this.injected;
}
- async show(elementRect, options) {
+ async show(elementRect, writingMode, options) {
await this.inject(options);
- const containerStyle = window.getComputedStyle(this.container);
- const containerHeight = parseInt(containerStyle.height);
- const containerWidth = parseInt(containerStyle.width);
+ const optionsGeneral = options.general;
+ const container = this.container;
+ const containerRect = container.getBoundingClientRect();
+ const getPosition = (
+ writingMode === 'horizontal-tb' || optionsGeneral.popupVerticalTextPosition === 'default' ?
+ Popup.getPositionForHorizontalText :
+ Popup.getPositionForVerticalText
+ );
- const limitX = document.body.clientWidth;
- const limitY = window.innerHeight;
+ const [x, y, width, height, below] = getPosition(
+ elementRect,
+ Math.max(containerRect.width, optionsGeneral.popupWidth),
+ Math.max(containerRect.height, optionsGeneral.popupHeight),
+ document.body.clientWidth,
+ window.innerHeight,
+ optionsGeneral,
+ writingMode
+ );
- let x = elementRect.left + options.general.popupHorizontalOffset;
- let width = Math.max(containerWidth, options.general.popupWidth);
- const overflowX = Math.max(x + width - limitX, 0);
+ container.classList.toggle('yomichan-float-full-width', optionsGeneral.popupDisplayMode === 'full-width');
+ container.classList.toggle('yomichan-float-above', !below);
+ container.style.left = `${x}px`;
+ container.style.top = `${y}px`;
+ container.style.width = `${width}px`;
+ container.style.height = `${height}px`;
+ container.style.visibility = 'visible';
+ }
+
+ static getPositionForHorizontalText(elementRect, width, height, maxWidth, maxHeight, optionsGeneral) {
+ let x = elementRect.left + optionsGeneral.popupHorizontalOffset;
+ const overflowX = Math.max(x + width - maxWidth, 0);
if (overflowX > 0) {
if (x >= overflowX) {
x -= overflowX;
} else {
- width = limitX;
+ width = maxWidth;
x = 0;
}
}
- let above = false;
- let y = 0;
- let height = Math.max(containerHeight, options.general.popupHeight);
- const yBelow = elementRect.bottom + options.general.popupVerticalOffset;
- const yAbove = elementRect.top - options.general.popupVerticalOffset;
- const overflowBelow = Math.max(yBelow + height - limitY, 0);
- const overflowAbove = Math.max(height - yAbove, 0);
- if (overflowBelow > 0 || overflowAbove > 0) {
- if (overflowBelow < overflowAbove) {
- height = Math.max(height - overflowBelow, 0);
- y = yBelow;
+ const verticalOffset = optionsGeneral.popupVerticalOffset;
+ const [y, h, below] = Popup.limitGeometry(
+ elementRect.top - verticalOffset,
+ elementRect.bottom + verticalOffset,
+ height,
+ maxHeight,
+ true
+ );
+
+ return [x, y, width, h, below];
+ }
+
+ static getPositionForVerticalText(elementRect, width, height, maxWidth, maxHeight, optionsGeneral, writingMode) {
+ const preferRight = Popup.isVerticalTextPopupOnRight(optionsGeneral.popupVerticalTextPosition, writingMode);
+ const horizontalOffset = optionsGeneral.popupHorizontalOffset2;
+ const verticalOffset = optionsGeneral.popupVerticalOffset2;
+
+ const [x, w] = Popup.limitGeometry(
+ elementRect.left - horizontalOffset,
+ elementRect.right + horizontalOffset,
+ width,
+ maxWidth,
+ preferRight
+ );
+ const [y, h, below] = Popup.limitGeometry(
+ elementRect.bottom - verticalOffset,
+ elementRect.top + verticalOffset,
+ height,
+ maxHeight,
+ true
+ );
+ return [x, y, w, h, below];
+ }
+
+ static isVerticalTextPopupOnRight(positionPreference, writingMode) {
+ switch (positionPreference) {
+ case 'before':
+ return !Popup.isWritingModeLeftToRight(writingMode);
+ case 'after':
+ return Popup.isWritingModeLeftToRight(writingMode);
+ case 'left':
+ return false;
+ case 'right':
+ return true;
+ }
+ }
+
+ static isWritingModeLeftToRight(writingMode) {
+ switch (writingMode) {
+ case 'vertical-lr':
+ case 'sideways-lr':
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ static limitGeometry(positionBefore, positionAfter, size, limit, preferAfter) {
+ let after = preferAfter;
+ let position = 0;
+ const overflowBefore = Math.max(0, size - positionBefore);
+ const overflowAfter = Math.max(0, positionAfter + size - limit);
+ if (overflowAfter > 0 || overflowBefore > 0) {
+ if (overflowAfter < overflowBefore) {
+ size = Math.max(0, size - overflowAfter);
+ position = positionAfter;
+ after = true;
} else {
- height = Math.max(height - overflowAbove, 0);
- y = Math.max(yAbove - height, 0);
- above = true;
+ size = Math.max(0, size - overflowBefore);
+ position = Math.max(0, positionBefore - size);
+ after = false;
}
} else {
- y = yBelow;
+ position = preferAfter ? positionAfter : positionBefore - size;
}
- this.container.classList.toggle('yomichan-float-full-width', options.general.popupDisplayMode === 'full-width');
- this.container.classList.toggle('yomichan-float-above', above);
- this.container.style.left = `${x}px`;
- this.container.style.top = `${y}px`;
- this.container.style.width = `${width}px`;
- this.container.style.height = `${height}px`;
- this.container.style.visibility = 'visible';
+ return [position, size, after];
}
- async showOrphaned(elementRect, options) {
- await this.show(elementRect, options);
+ async showOrphaned(elementRect, writingMode, options) {
+ await this.show(elementRect, writingMode, options);
this.invokeApi('orphaned');
}
@@ -136,13 +207,13 @@ class Popup {
return contained;
}
- async termsShow(elementRect, definitions, options, context) {
- await this.show(elementRect, options);
+ async termsShow(elementRect, writingMode, definitions, options, context) {
+ await this.show(elementRect, writingMode, options);
this.invokeApi('termsShow', {definitions, options, context});
}
- async kanjiShow(elementRect, definitions, options, context) {
- await this.show(elementRect, options);
+ async kanjiShow(elementRect, writingMode, definitions, options, context) {
+ await this.show(elementRect, writingMode, options);
this.invokeApi('kanjiShow', {definitions, options, context});
}
diff --git a/ext/fg/js/source.js b/ext/fg/js/source.js
index a360b331..a5421934 100644
--- a/ext/fg/js/source.js
+++ b/ext/fg/js/source.js
@@ -61,6 +61,10 @@ class TextSourceRange {
return this.range.getBoundingClientRect();
}
+ getWritingMode() {
+ return TextSourceRange.getElementWritingMode(TextSourceRange.getParentElement(this.range.startContainer));
+ }
+
getPaddedRect() {
const range = this.range.cloneRange();
const startOffset = range.startOffset;
@@ -204,6 +208,23 @@ class TextSourceRange {
return state.remainder > 0;
}
+
+ static getParentElement(node) {
+ while (node !== null && node.nodeType !== Node.ELEMENT_NODE) {
+ node = node.parentNode;
+ }
+ return node;
+ }
+
+ static getElementWritingMode(element) {
+ if (element === null) {
+ return 'horizontal-tb';
+ }
+
+ const style = window.getComputedStyle(element);
+ const writingMode = style.writingMode;
+ return typeof writingMode === 'string' ? writingMode : 'horizontal-tb';
+ }
}
@@ -267,6 +288,10 @@ class TextSourceElement {
return this.element.getBoundingClientRect();
}
+ getWritingMode() {
+ return 'horizontal-tb';
+ }
+
select() {
// NOP
}
--
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