pnsk-structured-editor/pnsk-structured-editor-iframe.html at master · patternseek/pnsk-structured-editor · GitHub

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<link rel="import" href="../polymer/polymer-micro.html">

<style>
    pnsk-structured-editor-iframe .preview {
        background-color: white;
        margin-bottom: 12px;
        padding: 8px;
        display: none;
    }
</style>

<template id="pnsk-structured-editor-iframe" noshadowroot>
    <div class="preview"></div>
        <span class="inputswrapper">
            <label>
                URL
                <input class="url" type="url">
            </label>
            <label>
                Height
                <input class="height" type="text">
            </label>
        </span>

    <content></content>
</template>


<script>
    Polymer({
        is: 'pnsk-structured-editor-iframe',
        behaviors: [MinimalComponent],

        template: currentImport.querySelector('#pnsk-structured-editor-iframe'),

        dataType: "iframe",

        getState: function () {
            return {
                'url': this.qs(".url").value,
                'height': this.qs(".height").value,
            };
        },

        setState: function (state) {
            this.qs(".url").value = state.url;
            this.qs(".height").value = state.height;
            this._updatePreview();
        },

        _onChange: function () {
            var event = new Event('pnsk-component-stateChanged');
            this.dispatchEvent(event);
            this._updatePreview();
        },

        _updatePreview: function () {
            var iframe;
            var plc = this.qs(".preview");
            var src = this.qs(".url").value;
            var height = this.qs(".height").value
            if (iframe = plc.querySelector("iframe")) {
                // Don't flash iframe changes all the time
                if (iframe.src != src) {
                    iframe.src = src;
                }
            } else {
                iframe = document.createElement("iframe");
                iframe.src = src;
                iframe.style.width = "100%";
                iframe.frameBorder = 0;
                iframe.marginWidth = 0;
                iframe.marginHeight = 0;
                plc.appendChild(iframe);
                plc.style.display = "block";
            }
            iframe.style.height = height + "px";
        },

        // Element Lifecycle
        created: function () {
            this.qs(".inputswrapper").addEventListener("change", this._onChange.bind(this));
            this.qs(".inputswrapper").addEventListener("keyup", this._onChange.bind(this));
            this.qs(".inputswrapper").addEventListener("paste", this._onChange.bind(this));
            this.qs(".inputswrapper").addEventListener("cut", this._onChange.bind(this));
        },

    });

</script>