Files
web/web_drop_target/static/src/js/web_drop_target.js
2022-05-18 15:40:56 +02:00

342 lines
12 KiB
JavaScript

/* global Uint8Array, base64js */
// Copyright 2018 Therp BV <https://therp.nl>
// Copyright 2021 Tecnativa - Alexandre D. Díaz
// License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html).
odoo.define("web_drop_target", function (require) {
"use strict";
const AbstractAction = require("web.AbstractAction");
const FormController = require("web.FormController");
const core = require("web.core");
const qweb = core.qweb;
// This is the main contribution of this addon: A mixin you can use
// To make some widget a drop target. Read on how to use this yourself
const DropTargetMixin = {
// Add the mime types you want to support here, leave empty for
// All types. For more control, override _get_drop_items in your class
_drop_allowed_types: [],
// Determine the zone where can drop files, if not defined, we use the element
_drop_zone_selector: undefined,
/**
* @override
*/
start: function () {
const $body = $("body");
this._dropZoneNS = _.uniqueId("o_dz_"); // For event namespace used when multiple chat window is open
$body.on(
"dragleave." + this._dropZoneNS,
this._onBodyFileDragLeave.bind(this)
);
$body.on(
"dragover." + this._dropZoneNS,
this._onBodyFileDragover.bind(this)
);
$body.on("drop." + this._dropZoneNS, this._onBodyFileDrop.bind(this));
return this._super.apply(this, arguments).then((result) => {
_.defer(this._add_overlay.bind(this));
return result;
});
},
/**
* @override
*/
destroy: function () {
this._super.apply(this, arguments);
const $body = $("body");
$body.off("dragleave." + this._dropZoneNS);
$body.off("dragover." + this._dropZoneNS);
$body.off("drop." + this._dropZoneNS);
this._remove_overlay();
},
/**
* @override
Necessary for creation of attachment
*/
_updateAndDisable: function () {
return this._super.apply(this, arguments).then((result) => {
this._update_overlay();
return result;
});
},
/**
* @override
Necessary for change of views and Next and Previous buttons
*/
_update: function () {
return this._super.apply(this, arguments).then((result) => {
this._update_overlay();
return result;
});
},
_update_overlay: function () {
this._remove_overlay();
_.defer(this._add_overlay.bind(this));
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @returns {Number}
*/
_get_record_id: function () {
// Implement when including this mixin. Return the record ID.
console.log("'_get_record_id': Not Implemented");
return false;
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
*/
_add_overlay: function () {
if (!this._drop_overlay || this._drop_overlay.length === 0) {
if (this._drop_zone_selector)
this.$drop_zone = this.$(this._drop_zone_selector).last();
else this.$drop_zone = this.$el;
// Element that represents the zone where you can drop files
// TODO: This name is preserved for not breaking the compatibility with other modules,
// but should be changed in new versions to follow the standard ($name)
this._drop_overlay = $(
qweb.render("web_drop_target.drop_overlay", {
id: this._get_record_id(),
})
);
this.$drop_zone.append(this._drop_overlay);
this._drop_overlay.on("drop", this._on_drop.bind(this));
}
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
*/
_remove_overlay: function () {
if (this._drop_overlay && this._drop_overlay.length) {
this._drop_overlay.off("drop");
this._drop_overlay.remove();
this._drop_overlay = null;
}
},
/** ********************
* HANDLE EVENTS
**********************/
/**
* @private
* @param {MouseEvent} ev
*/
_onBodyFileDragLeave: function (ev) {
// On every dragenter chain created with parent child element
// That's why dragleave is fired every time when a child elemnt is hovered
// so here we hide dropzone based on mouse position
if (
ev.originalEvent.clientX <= 0 ||
ev.originalEvent.clientY <= 0 ||
ev.originalEvent.clientX >= window.innerWidth ||
ev.originalEvent.clientY >= window.innerHeight
) {
this._drop_overlay.addClass("d-none");
}
},
/**
* @private
* @param {MouseEvent} ev
*/
_onBodyFileDragover: function (ev) {
ev.preventDefault();
const abstractAction = this.findAncestor(function (ancestor) {
return ancestor instanceof AbstractAction;
});
const controller = abstractAction.currentDialogController;
if (
_.isEmpty(this._get_drop_items(ev)) &&
this._checkDragOver() &&
(controller == undefined || controller.jsID === this.controllerID)
) {
const drop_zone_offset = this.$drop_zone.offset();
const overlay_css = {
top: drop_zone_offset.top,
left: drop_zone_offset.left,
width: this.$drop_zone.width(),
height: this.$drop_zone.height(),
};
if (!this._get_record_id()) {
overlay_css.background = "#FF000020";
}
this._drop_overlay.css(overlay_css);
this._drop_overlay.removeClass("d-none");
}
},
_checkDragOver: function () {
return true;
},
/**
* @private
* @param {MouseEvent} ev
*/
_onBodyFileDrop: function (ev) {
ev.preventDefault();
this._drop_overlay.addClass("d-none");
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @param {MouseEvent} ev
*/
_on_drop: function (ev) {
if (!this._drop_overlay || this._drop_overlay.length === 0) {
return;
}
ev.preventDefault();
const drop_items = this._get_drop_items(ev);
if (_.isEmpty(drop_items)) {
return;
}
this._handle_drop_items(drop_items, ev);
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @param {MouseEvent} ev
*/
_get_drop_items: function (ev) {
let drop_items = [];
if (this._get_record_id()) {
const dataTransfer = ev.originalEvent.dataTransfer;
drop_items = _.filter(
dataTransfer.files,
(item) =>
_.isEmpty(this._drop_allowed_types) ||
_.contains(this._drop_allowed_types, item.type)
);
}
return drop_items;
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @param {Array} drop_items
* @param {MouseEvent} ev
*/
// eslint-disable-next-line no-unused-vars
_handle_drop_items: function (drop_items, ev) {
// Do something here, for example call the helper function below
// e is the on_load_end handler for the FileReader above,
// so e.target.result contains an ArrayBuffer of the data
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @param {Object} file
* @param {FileReader} reader
* @param {String} res_model
* @param {Number} res_id
* @param {Object} extra_data
*/
_create_attachment: function (file, reader, res_model, res_id, extra_data) {
// Helper to upload an attachment and update the sidebar
var self = this;
return this._rpc({
model: "ir.attachment",
method: "create",
args: [
_.extend(
{
name: file.name,
datas: base64js.fromByteArray(
new Uint8Array(reader.result)
),
res_model: res_model,
res_id: res_id,
},
extra_data
),
],
}).then(() => {
// Find the chatter among the children, there should be only
// one
self.trigger_up("reload", {
keepChanges: true,
onSuccess: this._update_overlay.bind(this),
});
});
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @param {ErrorEvent} ev
*/
_file_reader_error_handler: function (ev) {
console.error(ev);
},
/**
* TODO: Change the name to follow the standard in new versions
*
* @private
* @param {Object} item
*/
_handle_file_drop_attach: function (item) {
if (!item || !(item instanceof Blob)) {
return;
}
const res_model = this.renderer.state.model;
const res_id = this.renderer.state.res_id;
const reader = new FileReader();
reader.onloadend = this._create_attachment.bind(
this,
item,
reader,
res_model,
res_id,
undefined
);
reader.onerror = this._file_reader_error_handler.bind(this);
reader.readAsArrayBuffer(item);
},
};
// And here we apply the mixin to form views, allowing any files and
// adding them as attachment
FormController.include(
_.extend({}, DropTargetMixin, {
// Using multi-selector to ensure that is displayed in forms without "sheet"
// NOTE: Only the inner element would be selected
_drop_zone_selector: ".o_form_sheet_bg,.o_form_view",
_handle_drop_items: function (drop_items) {
_.each(drop_items, this._handle_file_drop_attach, this);
},
_get_record_id: function () {
return this.renderer.state.res_id;
},
_checkDragOver: function () {
return this.renderer._chatterContainerComponent;
},
})
);
return {
DropTargetMixin: DropTargetMixin,
};
});