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// Pressing `Escape` should close the last opened “element” and only the last
// one. Components can register themselves using a label a condition, and an
// action. This is used by Popup or inlinedForm for instance. When we press
// escape we execute the action which have a valid condition and his the highest
// in the label hierarchy.
EscapeActions = {
_nextclickPrevented: false,
_actions: [],
// Executed in order
hierarchy: [
'textcomplete',
'popup-back',
'popup-close',
'modalWindow',
'inlinedForm',
'detailsPane',
'multiselection',
'sidebarView',
],
register(label, action, condition = () => true, options = {}) {
const priority = this.hierarchy.indexOf(label);
if (priority === -1) {
throw Error('You must define the label in the EscapeActions hierarchy');
}
let enabledOnClick = options.enabledOnClick;
if (_.isUndefined(enabledOnClick)) {
enabledOnClick = true;
}
const noClickEscapeOn = options.noClickEscapeOn;
this._actions = _.sortBy(
[
...this._actions,
{
priority,
condition,
action,
noClickEscapeOn,
enabledOnClick,
},
],
action => action.priority,
);
},
executeLowest() {
return this._execute({
multipleActions: false,
});
},
executeAll() {
return this._execute({
multipleActions: true,
});
},
executeUpTo(maxLabel) {
return this._execute({
maxLabel,
multipleActions: true,
});
},
clickExecute(target, maxLabel) {
if (this._nextclickPrevented) {
this._nextclickPrevented = false;
return false;
} else {
return this._execute({
maxLabel,
multipleActions: false,
isClick: true,
clickTarget: target,
});
}
},
preventNextClick() {
this._nextclickPrevented = true;
},
_stopClick(action, clickTarget) {
if (!_.isString(action.noClickEscapeOn)) return false;
else return $(clickTarget).closest(action.noClickEscapeOn).length > 0;
},
_execute(options) {
const maxLabel = options.maxLabel;
const multipleActions = options.multipleActions;
const isClick = Boolean(options.isClick);
const clickTarget = options.clickTarget;
let executedAtLeastOne = false;
let maxPriority;
if (!maxLabel) maxPriority = Infinity;
else maxPriority = this.hierarchy.indexOf(maxLabel);
for (const currentAction of this._actions) {
if (currentAction.priority > maxPriority) return executedAtLeastOne;
if (isClick && this._stopClick(currentAction, clickTarget))
return executedAtLeastOne;
const isEnabled = currentAction.enabledOnClick || !isClick;
if (isEnabled && currentAction.condition()) {
currentAction.action();
executedAtLeastOne = true;
if (!multipleActions) return executedAtLeastOne;
}
}
return executedAtLeastOne;
},
};
// Pressing escape to execute one escape action. We use `bindGloabal` vecause
// the shortcut sould work on textarea and inputs as well.
Mousetrap.bindGlobal('esc', () => {
EscapeActions.executeLowest();
});
// On a left click on the document, we try to exectute one escape action (eg,
// close the popup). We don't execute any action if the user has clicked on a
// link or a button.
$(document).on('click', evt => {
if (
evt.button === 0 &&
$(evt.target).closest('a,button,.is-editable').length === 0
) {
EscapeActions.clickExecute(evt.target, 'multiselection');
}
});
$(document).on('click', 'a[href=\\#]', evt => {
evt.preventDefault();
});
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