keeweb/app/scripts/mixins/view.js

105 lines
2.6 KiB
JavaScript

const Backbone = require('backbone');
const Tip = require('../util/tip');
_.extend(Backbone.View.prototype, {
hide: function() {
Tip.hideTips(this.$el);
return this.toggle(false);
},
show: function() {
return this.toggle(true);
},
toggle: function(visible) {
if (visible === undefined) {
visible = this._hidden;
}
this.$el.toggleClass('show', !!visible);
this.$el.toggleClass('hide', !visible);
this._hidden = !visible;
this.trigger(visible ? 'show' : 'hide');
if (!visible) {
Tip.hideTips(this.$el);
}
return this;
},
isHidden: function() {
return this._hidden;
},
isVisible: function() {
return !this._hidden;
},
afterPaint: function(callback) {
this.requestAnimationFrame(function() {
this.requestAnimationFrame(callback);
});
},
setTimeout: function(callback) {
setTimeout(callback.bind(this), 0);
},
requestAnimationFrame: function(callback) {
requestAnimationFrame(callback.bind(this));
},
renderTemplate: function(model, replace) {
Tip.hideTips(this.$el);
if (replace && replace.plain) {
this.$el.html(this.template(model));
} else {
if (replace) {
this.$el.html('');
}
const el = $(this.template(model));
if (!this._elAppended || replace) {
this.$el.append(el);
this._elAppended = true;
} else {
this.$el.replaceWith(el);
}
this.setElement(el);
}
Tip.createTips(this.$el);
},
_parentRemove: Backbone.View.prototype.remove,
remove: function() {
this.trigger('remove');
this.removeInnerViews();
if (this.scroll) {
try {
this.scroll.dispose();
} catch (e) {}
}
Tip.hideTips(this.$el);
this._parentRemove(arguments);
},
removeInnerViews: function() {
if (this.views) {
_.each(this.views, view => {
if (view) {
if (view instanceof Backbone.View) {
view.remove();
} else if (view.length) {
view.forEach(v => v.remove());
}
}
});
this.views = {};
}
},
deferRender: function() {
_.defer(this.render.bind(this));
}
});
module.exports = Backbone.View;