49 lines
993 B
JavaScript
49 lines
993 B
JavaScript
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/**
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* @provides javelin-behavior-differential-keyboard-navigation
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* @requires javelin-behavior
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* javelin-dom
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* phabricator-keyboard-shortcut
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*/
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JX.behavior('differential-keyboard-navigation', function(config) {
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var cursor = null;
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var changesets;
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function init() {
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if (changesets) {
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return;
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}
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changesets = JX.DOM.scry(document.body, 'div', 'differential-changeset');
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}
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function jump(manager, delta) {
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init();
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if (cursor === null) {
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cursor = -1;
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}
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cursor = (cursor + changesets.length + delta) % changesets.length;
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var selected = changesets[cursor];
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manager.scrollTo(selected);
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manager.focusOn(selected);
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}
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new JX.KeyboardShortcut('j', 'Jump to next change.')
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.setHandler(function(manager) {
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jump(manager, 1);
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})
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.register();
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new JX.KeyboardShortcut('k', 'Jump to previous change.')
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.setHandler(function(manager) {
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jump(manager, -1);
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})
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.register();
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});
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