Commit 068def28 authored by Romain Courteaud's avatar Romain Courteaud Committed by Gabriel Monnerat

erp5_document_scanner: upload images asynchronously to improve the usability

XXX
Allow to show previously uploaded image.
Allow to delete or retry uploading.

Form submittion only send the active process informations.
parent ce7b4449
......@@ -77,6 +77,40 @@
}, canceller);
}
function handleAsyncStore(gadget, blob_page) {
return new RSVP.Queue()
.push(function () {
// XXX TODO: jio.util.ajax with
/*
JSON.stringify({
input_value: gadget.state.blob_url_XXX.split(';')[1].split(',')[1],
// preferred_cropped_canvas_data: gadget.state.preferred_cropped_canvas_data
})
*/
function getRandomInt(max) {
return Math.floor(Math.random() * Math.floor(max));
}
// XXX long or not, working or not, who knows?
return RSVP.any([
RSVP.delay(2000 + getRandomInt(3000)),
RSVP.timeout(2000 + getRandomInt(3000))
]);
})
.push(function () {
var state_dict = {};
state_dict['blob_state_' + blob_page] = 'stored';
// XXX TODO: ajax must return a active process image content UUID
// which should be sent in the final form submittion
state_dict['blob_uuid_' + blob_page] = 'XXX';
return gadget.changeState(state_dict);
}, function () {
// XXX TODO: Handle error case
var state_dict = {};
state_dict['blob_state_' + blob_page] = 'failed';
return gadget.changeState(state_dict);
});
}
//////////////////////////////////////////////////
// helper function
//////////////////////////////////////////////////
......@@ -197,6 +231,39 @@
});
}
function buildPreviousThumbnailDom(gadget) {
var i,
len = gadget.state.page_count,
thumbnail_dom_list = [];
for (i = 0; i < len; i += 1) {
// XXX TODO: show nice looking thumbnail
// from gadget.state.blob_url_i
// XXX TODO translation + right term
// XXX TODO display a loader when sending
if (gadget.state['blob_state_' + i] !== 'deleted') {
thumbnail_dom_list.push(domsugar('button', {type: 'button',
text: 'Image' + (i + 1) + ' (' + gadget.state['blob_state_' + i] + ')',
// Do not allow to show again the current image
// or do not allow to show sending image (to simplify button management)
disabled: (i === gadget.state.page) || (gadget.state['blob_state_' + i] === 'sending'),
class: 'show-img',
'data-page': i
}));
}
}
// Always add a button to generate a new image
// XXX TODO translation + right term
thumbnail_dom_list.push(domsugar('button', {type: 'button',
text: 'New',
// Do not allow to show again the current image
disabled: (len === gadget.state.page - 1),
class: 'new-btn'
}));
return domsugar('ol', thumbnail_dom_list);
}
// Display the video stream from a media source
function renderVideoCapture(gadget) {
var video;
......@@ -257,7 +324,8 @@
])
]),
domsugar('div', {class: 'camera-input'}, [video]),
domsugar('div', {class: 'edit-picture'}, button_list)
domsugar('div', {class: 'edit-picture'}, button_list),
buildPreviousThumbnailDom(gadget)
]);
gadget.element.replaceChild(div, gadget.element.firstElementChild);
......@@ -314,7 +382,8 @@
class: 'confirm-btn ui-btn-icon-left ui-icon-check',
text: result_list[0][1]
})
])
]),
buildPreviousThumbnailDom(gadget)
]);
// XXX How to change the dom only when cropper is ready?
......@@ -333,19 +402,44 @@
}
function renderSubmittedPicture(gadget) {
var div = domsugar('div', {class: 'camera'}, [
domsugar('div', {class: 'camera-header'}, [
domsugar('h4', [
'Page ',
domsugar('label', {class: 'page-number', text: gadget.state.page})
])
]),
domsugar('img', {src: gadget.state.blob_url})
]);
// XXX How to change the dom only when cropper is ready?
// For now, it needs to access dom element size
gadget.element.replaceChild(div, gadget.element.firstElementChild);
return gadget.getTranslationList(["Delete", "Retry"])
.push(function (translation_list) {
var button_list = [
// XXX TODO: improve icon
domsugar('button', {type: 'button',
class: 'delete-btn ui-btn-icon-left ui-icon-times',
text: translation_list[0]
})
],
div;
if (gadget.state['blob_state_' + gadget.state.page] === 'failed') {
button_list.push(
// XXX TODO improve icon
domsugar('button', {type: 'button',
class: 'retry-btn ui-btn-icon-left ui-icon-times',
text: translation_list[1]
})
);
}
div = domsugar('div', {class: 'camera'}, [
domsugar('div', {class: 'camera-header'}, [
domsugar('h4', [
'Page ',
domsugar('label', {class: 'page-number', text: gadget.state.page + 1})
])
]),
domsugar('img', {src: gadget.state['blob_url_' + gadget.state.page]}),
// XXX TODO: why is the button rendering different from the other pages?
domsugar('div', {class: 'edit-picture'}, button_list),
buildPreviousThumbnailDom(gadget)
]);
// XXX How to change the dom only when cropper is ready?
// For now, it needs to access dom element size
gadget.element.replaceChild(div, gadget.element.firstElementChild);
});
}
//////////////////////////////////////////////////
......@@ -374,7 +468,8 @@
.setState({
display_step: 'display_video',
page: 1
page: 1,
page_count: 0
})
.declareMethod('render', function (options) {
// This method is called during the ERP5 form rendering
......@@ -387,43 +482,50 @@
dialog_method: options.dialog_method,
preferred_cropped_canvas_data: JSON.parse(options.preferred_cropped_canvas_data),
device_id: device_id,
key: options.key
key: options.key,
first_render: true
});
});
})
.onStateChange(function () {
var gadget = this;
.onStateChange(function (modification_dict) {
var gadget = this,
display_step,
thumbnail_container;
// ALL DOM modifications must be done only in this method
// this prevent concurrency issue on DOM access
if (gadget.state.display_step === 'display_video') {
// Only refresh the full gadget content after the first render call
// or if the display_step is modified
// or if displaying another image
if (modification_dict.first_render || modification_dict.hasOwnProperty('page')) {
display_step = gadget.state.display_step;
} else {
display_step = modification_dict.display_step;
}
if (display_step === 'display_video') {
return renderVideoCapture(gadget);
}
if (gadget.state.display_step === 'crop_picture') {
if (display_step === 'crop_picture') {
return captureAndRenderPicture(gadget);
}
if (gadget.state.display_step === 'submitting') {
if (display_step === 'show_picture') {
return renderSubmittedPicture(gadget);
}
if (display_step) {
// Ease developper work by raising for not handled cases
throw new Error('Unhandled display step: ' + gadget.state.display_step);
}
// Ease developper work by raising for not handled cases
throw new Error('Unhandled display step: ' + gadget.state.display_step);
})
// Only refresh the thumbnail list
// if display_step is not modified
// XXX TODO use a more precise selector
thumbnail_container = gadget.element.querySelector('ol');
thumbnail_container.parentElement.replaceChild(
buildPreviousThumbnailDom(gadget),
thumbnail_container
);
.declareMethod('getContent', function () {
var gadget = this,
result = {};
if (gadget.state.display_step === 'submitting') {
// do not send any content when sending the final form
result[gadget.state.key] = JSON.stringify({
input_value: gadget.state.blob_url.split(';')[1].split(',')[1],
preferred_cropped_canvas_data: gadget.state.preferred_cropped_canvas_data
});
}
return result;
})
.onEvent("click", function (evt) {
......@@ -432,7 +534,8 @@
return;
}
var gadget = this;
var gadget = this,
state_dict;
// Disable any button. It must be managed by this gadget
evt.preventDefault();
......@@ -452,6 +555,22 @@
});
}
if (evt.target.className.indexOf("new-btn") !== -1) {
return gadget.changeState({
display_step: 'display_video',
page: gadget.state.page_count + 1
});
}
if (evt.target.className.indexOf("delete-btn") !== -1) {
state_dict = {
display_step: 'display_video',
page: gadget.state.page_count + 1
};
state_dict['blob_state_' + gadget.state.page] = 'deleted';
return gadget.changeState(state_dict);
}
if (evt.target.className.indexOf("confirm-btn") !== -1) {
return new RSVP.Queue()
.push(function () {
......@@ -464,25 +583,40 @@
return jIO.util.readBlobAsDataURL(blob);
})
.push(function (evt) {
return gadget.changeState({
blob_url: evt.target.result,
state_dict = {
preferred_cropped_canvas_data: gadget.cropper.getData(),
display_step: 'submitting'
});
display_step: 'display_video',
page: gadget.state.page + 1,
page_count: gadget.state.page_count + 1
};
// Keep image date, as user may need to display it again
state_dict['blob_url_' + gadget.state.page_count] = evt.target.result;
state_dict['blob_state_' + gadget.state.page_count] = 'sending';
return gadget.changeState(state_dict);
})
.push(function () {
// XXX TODO Send the image to ERP5
// XXX Ensure that you have the active process relative url
addDetachedPromise(gadget, 'ajax_' + (gadget.state.page_count - 1),
handleAsyncStore(gadget, gadget.state.page_count - 1));
gadget.detached_promise_dict.cropper.cancel('Not needed anymore, as cropped');
return gadget.submitDialogWithCustomDialogMethod(gadget.state.dialog_method);
})
.push(function (evt) {
return gadget.changeState({
blob_url: undefined,
display_step: 'display_video',
page: gadget.state.page + 1
});
});
}
if (evt.target.className.indexOf("retry-btn") !== -1) {
// XXX TODO Send the image to ERP5
// XXX Ensure that you have the active process relative url
addDetachedPromise(gadget, 'ajax_' + (gadget.state.page),
handleAsyncStore(gadget, gadget.state.page));
state_dict = {
display_step: 'display_video',
page: gadget.state.page_count + 1
};
state_dict['blob_state_' + gadget.state.page] = 'sending';
return gadget.changeState(state_dict);
}
if (evt.target.className.indexOf("change-camera-btn") !== -1) {
return selectMediaDevice(gadget.state.device_id, true)
.push(function (device_id) {
......@@ -493,15 +627,44 @@
});
}
if (evt.target.className.indexOf("show-img") !== -1) {
if (gadget.detached_promise_dict.cropper) {
gadget.detached_promise_dict.cropper.cancel('Not needed anymore, as cancelled');
}
if (gadget.detached_promise_dict.media_stream) {
gadget.detached_promise_dict.media_stream.cancel('Not needed anymore, as cancelled');
}
return gadget.changeState({
display_step: 'show_picture',
page: parseInt(evt.target.getAttribute('data-page'), 10)
});
}
throw new Error('Unhandled button: ' + evt.target.textContent);
}, false, false)
//////////////////////////////////////////////////
// Used when submitting the form
//////////////////////////////////////////////////
.declareMethod('getContent', function () {
var gadget = this,
result = {};
// XXX TODO: check all blob, and only return the UUID for the one in stored state
result[gadget.state.key] = JSON.stringify({
input_value: 'XXX',
preferred_cropped_canvas_data: gadget.state.preferred_cropped_canvas_data
});
throw new Error('not implemented getContent');
}, {mutex: 'changestate'})
.declareMethod('checkValidity', function () {
// XXX TODO: check all blob, and ensure they are all: deleted, stored
// Any other state prevent to submit the form
// XXX if the state is required, ensure there is at least one blob stored
return false;
}, {mutex: 'changestate'})
.declareAcquiredMethod(
"submitDialogWithCustomDialogMethod",
"submitDialogWithCustomDialogMethod"
)
.declareAcquiredMethod("getTranslationList", "getTranslationList")
.declareAcquiredMethod("notifySubmitted", "notifySubmitted");
.declareAcquiredMethod("getTranslationList", "getTranslationList");
}(rJS, RSVP, window, document, navigator, Cropper, Promise, JSON, jIO, promiseEventListener, domsugar, createImageBitmap));
\ No newline at end of file
......@@ -244,7 +244,7 @@
</item>
<item>
<key> <string>serial</string> </key>
<value> <string>981.21579.36694.13363</string> </value>
<value> <string>981.21983.29656.41591</string> </value>
</item>
<item>
<key> <string>state</string> </key>
......@@ -262,7 +262,7 @@
</tuple>
<state>
<tuple>
<float>1579684586.42</float>
<float>1579708838.71</float>
<string>UTC</string>
</tuple>
</state>
......
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