108 lines
2.6 KiB
JavaScript
108 lines
2.6 KiB
JavaScript
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var Widget = require('./widget');
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var Assistant = require('./assistant');
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module.exports = new Class({
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Extends: Widget,
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Tag: 'htk-assistant-bar',
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Properties: {
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assistant: {
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type: Assistant,
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set: function(x) {
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this.link({_assistant: x}, {
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'step-change': this.onStepChange,
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'steps-change': this.onStepsChange
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});
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this.onStepsChange();
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},
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get: function() {
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return this._assistant;
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}
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}
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},
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_assistant: null,
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_stepIndex: -1,
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render: function() {
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var bar = this.createRoot('div');
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bar.className = 'htk-assistant-bar';
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var previousButton = this.createElement('img');
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previousButton.src = 'image/icon/light/go-previous.svg';
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previousButton.className = 'previous';
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previousButton.title = _('Previous');
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previousButton.addEventListener('click', this.movePrevious.bind(this));
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bar.appendChild(previousButton);
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var steps = this.createElement('div');
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bar.appendChild(steps);
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var nextButton = this.createElement('img');
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nextButton.src = 'image/icon/light/go-next.svg';
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nextButton.className = 'next';
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nextButton.title = _('Next');
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nextButton.addEventListener('click', this.moveNext.bind(this));
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bar.appendChild(nextButton);
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this._steps = steps;
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this._previousButton = previousButton;
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this._nextButton = nextButton;
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},
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movePrevious: function() {
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if (this._assistant)
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this._assistant.movePrevious();
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},
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moveNext: function() {
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if (this._assistant)
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this._assistant.moveNext();
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},
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setStep: function(stepIndex) {
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if (this._assistant)
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this._assistant.setStep(stepIndex);
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},
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onStepsChange: function() {
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var stepCount = this._assistant.stepCount;
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var steps = this._steps;
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Vn.Node.removeChilds(steps);
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steps.style.width = (stepCount * 1.7) + 'em';
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for (var i = 0; i < stepCount; i++) {
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var img = this.createElement('img');
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img.src = 'image/step.svg';
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img.addEventListener('click', this.setStep.bind(this, i));
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steps.appendChild(img);
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}
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this.onStepChange();
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},
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onStepChange: function() {
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var childs = this._steps.childNodes;
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var stepCount = childs ? childs.length : 0;
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var stepIndex = this._assistant ? this._assistant.step : -1;
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if (this._stepIndex != -1)
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childs[this._stepIndex].src = 'image/step.svg';
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if (stepIndex >= stepCount)
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return;
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this._stepIndex = stepIndex;
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if (stepIndex != -1)
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childs[stepIndex].src = 'image/step-cur.svg';
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var visibility = stepIndex <= 0 ? 'hidden' : 'visible';
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this._previousButton.style.visibility = visibility;
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var visibility = stepIndex >= stepCount - 1 ? 'hidden' : 'visible';
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this._nextButton.style.visibility = visibility;
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}
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});
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