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56 lines
1.3 KiB
56 lines
1.3 KiB
var util = require('../../util');
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/**
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* Prototype for visual components
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* @param {{dom: Object, domProps: Object, emitter: Emitter, range: Range}} [body]
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* @param {Object} [options]
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*/
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function Component (body, options) {
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this.options = null;
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this.props = null;
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}
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/**
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* Set options for the component. The new options will be merged into the
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* current options.
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* @param {Object} options
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*/
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Component.prototype.setOptions = function(options) {
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if (options) {
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util.extend(this.options, options);
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}
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};
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/**
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* Repaint the component
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* @return {boolean} Returns true if the component is resized
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*/
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Component.prototype.redraw = function() {
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// should be implemented by the component
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return false;
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};
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/**
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* Destroy the component. Cleanup DOM and event listeners
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*/
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Component.prototype.destroy = function() {
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// should be implemented by the component
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};
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/**
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* Test whether the component is resized since the last time _isResized() was
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* called.
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* @return {Boolean} Returns true if the component is resized
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* @protected
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*/
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Component.prototype._isResized = function() {
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var resized = (this.props._previousWidth !== this.props.width ||
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this.props._previousHeight !== this.props.height);
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this.props._previousWidth = this.props.width;
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this.props._previousHeight = this.props.height;
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return resized;
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};
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module.exports = Component;
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