diff options
Diffstat (limited to 'ext/fg')
| -rw-r--r-- | ext/fg/js/frontend.js | 203 |
1 files changed, 201 insertions, 2 deletions
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js index 266f9640..001ffc79 100644 --- a/ext/fg/js/frontend.js +++ b/ext/fg/js/frontend.js @@ -26,6 +26,14 @@ class Frontend { this.textSourceLast = null; this.pendingLookup = false; this.options = null; + + this.primaryTouchIdentifier = null; + this.contextMenuChecking = false; + this.contextMenuPrevent = false; + this.contextMenuPreviousRange = null; + this.mouseDownPrevent = false; + this.clickPrevent = false; + this.scrollPrevent = false; } async prepare() { @@ -39,6 +47,15 @@ class Frontend { window.addEventListener('mouseup', this.onMouseUp.bind(this)); window.addEventListener('resize', this.onResize.bind(this)); + if (this.options.scanning.touchInputEnabled) { + window.addEventListener('click', this.onClick.bind(this)); + window.addEventListener('touchstart', this.onTouchStart.bind(this)); + window.addEventListener('touchend', this.onTouchEnd.bind(this)); + window.addEventListener('touchcancel', this.onTouchCancel.bind(this)); + window.addEventListener('touchmove', this.onTouchMove.bind(this), {passive: false}); + window.addEventListener('contextmenu', this.onContextMenu.bind(this)); + } + chrome.runtime.onMessage.addListener(this.onBgMessage.bind(this)); } catch (e) { this.onError(e); @@ -79,7 +96,7 @@ class Frontend { const search = async () => { try { - await this.searchAt({x: e.clientX, y: e.clientY}); + await this.searchAt({x: e.clientX, y: e.clientY}, Frontend.SearchType.Mouse); } catch (e) { this.onError(e); } @@ -93,6 +110,14 @@ class Frontend { } onMouseDown(e) { + if (this.mouseDownPrevent) { + this.setMouseDownPrevent(false, false); + this.setClickPrevent(true); + e.preventDefault(); + e.stopPropagation(); + return false; + } + this.mousePosLast = {x: e.clientX, y: e.clientY}; this.popupTimerClear(); this.searchClear(); @@ -133,6 +158,85 @@ class Frontend { this.searchClear(); } + onClick(e) { + if (this.clickPrevent) { + this.setClickPrevent(false); + e.preventDefault(); + e.stopPropagation(); + return false; + } + } + + onTouchStart(e) { + if (this.primaryTouchIdentifier !== null && this.getIndexOfTouch(e.touches, this.primaryTouchIdentifier) >= 0) { + return; + } + + this.setPrimaryTouch(this.getPrimaryTouch(e.changedTouches)); + } + + onTouchEnd(e) { + if (this.primaryTouchIdentifier === null) { + return; + } + + if (this.getIndexOfTouch(e.changedTouches, this.primaryTouchIdentifier) < 0) { + return; + } + + this.setPrimaryTouch(this.getPrimaryTouch(this.excludeTouches(e.touches, e.changedTouches))); + } + + onTouchCancel(e) { + this.onTouchEnd(e); + } + + onTouchMove(e) { + if (!this.scrollPrevent || this.primaryTouchIdentifier === null) { + return; + } + + const touches = e.changedTouches; + const index = this.getIndexOfTouch(touches, this.primaryTouchIdentifier); + if (index < 0) { + return; + } + + const touch = touches[index]; + this.searchFromTouch(touch.clientX, touch.clientY, Frontend.SearchType.TouchMove); + + e.preventDefault(); // Disable scroll + } + + onContextMenu(e) { + if (this.contextMenuPrevent) { + this.setContextMenuPrevent(false, false); + e.preventDefault(); + e.stopPropagation(); + return false; + } + } + + onAfterSearch(newRange, type, searched, success) { + if (type === Frontend.SearchType.Mouse) { + return; + } + + if ( + !this.contextMenuChecking || + (this.contextMenuPreviousRange === null ? newRange === null : this.contextMenuPreviousRange.equals(newRange))) { + return; + } + + if (type === Frontend.SearchType.TouchStart && newRange !== null) { + this.scrollPrevent = true; + } + + this.setContextMenuPrevent(true, false); + this.setMouseDownPrevent(true, false); + this.contextMenuChecking = false; + } + onBgMessage({action, params}, sender, callback) { const handlers = { optionsSet: options => { @@ -167,18 +271,22 @@ class Frontend { } } - async searchAt(point) { + async searchAt(point, type) { if (this.pendingLookup || this.popup.containsPoint(point)) { return; } const textSource = docRangeFromPoint(point); let hideResults = !textSource || !textSource.containsPoint(point); + let searched = false; + let success = false; try { if (!hideResults && (!this.textSourceLast || !this.textSourceLast.equals(textSource))) { + searched = true; this.pendingLookup = true; hideResults = !await this.searchTerms(textSource) && !await this.searchKanji(textSource); + success = true; } } catch (e) { if (window.yomichan_orphaned) { @@ -196,6 +304,7 @@ class Frontend { } this.pendingLookup = false; + this.onAfterSearch(this.textSourceLast, type, searched, success); } } @@ -262,7 +371,97 @@ class Frontend { this.textSourceLast = null; } + + getPrimaryTouch(touchList) { + return touchList.length > 0 ? touchList[0] : null; + } + + getIndexOfTouch(touchList, identifier) { + for (let i = 0, ii = touchList.length; i < ii; ++i) { + let t = touchList[i]; + if (t.identifier === identifier) { + return i; + } + } + return -1; + } + + excludeTouches(touchList, excludeTouchList) { + const result = []; + for (let i = 0, ii = touchList.length; i < ii; ++i) { + let r = result[i]; + if (this.getIndexOfTouch(excludeTouchList, r.identifier) < 0) { + result.push(r); + } + } + return result; + } + + setPrimaryTouch(touch) { + if (touch === null) { + this.primaryTouchIdentifier = null; + this.contextMenuPreviousRange = null; + this.contextMenuChecking = false; + this.scrollPrevent = false; + this.setContextMenuPrevent(false, true); + this.setMouseDownPrevent(false, true); + this.setClickPrevent(false); + } + else { + this.primaryTouchIdentifier = touch.identifier; + this.contextMenuPreviousRange = this.textSourceLast ? this.textSourceLast.clone() : null; + this.contextMenuChecking = true; + this.scrollPrevent = false; + this.setContextMenuPrevent(false, false); + this.setMouseDownPrevent(false, false); + this.setClickPrevent(false); + + this.searchFromTouch(touch.clientX, touch.clientY, Frontend.SearchType.TouchStart); + } + } + + setContextMenuPrevent(value, delay) { + if (!delay) { + this.contextMenuPrevent = value; + } + } + + setMouseDownPrevent(value, delay) { + if (!delay) { + this.mouseDownPrevent = value; + } + } + + setClickPrevent(value) { + this.clickPrevent = value; + } + + searchFromTouch(x, y, type) { + this.popupTimerClear(); + + if (!this.options.general.enable || this.pendingLookup) { + return; + } + + const pos = {x: x, y: y}; + + const search = async () => { + try { + await this.searchAt(pos, type); + } catch (e) { + this.onError(e); + } + }; + + search(); + } } +Frontend.SearchType = { + Mouse: 0, + TouchStart: 1, + TouchMove: 2 +}; + window.yomichan_frontend = new Frontend(); window.yomichan_frontend.prepare(); |