More work on adding books in the server UI

src/pyj/ajax.pyj

@@ -113,7 +113,7 @@ def ajax(path, on_complete, on_progress=None, bypass_cache=True, method='GET', q
     xhr.timeout = timeout * 1000 # IE requires timeout to be set after open
     return xhr
 
-def ajax_send(path, data, on_complete, on_progress=None, query=None, timeout=30*1000, ok_code=200):
+def ajax_send(path, data, on_complete, on_progress=None, query=None, timeout=None, ok_code=200):
     # Unfortunately, browsers do not allow sending of data with HTTP GET, except
     # as query parameters, so we have to use POST
     xhr = ajax(path, on_complete, on_progress, False, 'POST', query, timeout, ok_code)
@@ -122,6 +122,19 @@ def ajax_send(path, data, on_complete, on_progress=None, query=None, timeout=30*
     return xhr
 
 
+def ajax_send_file(path, file, on_complete, on_progress, query=None, timeout=None, ok_code=200):
+    xhr = ajax(path, on_complete, on_progress, False, 'POST', query, timeout, ok_code)
+    if file.name:
+        xhr.setRequestHeader('Calibre-Filename', file.name)
+    if file.type:
+        xhr.overrideMimeType(file.type)
+    r = FileReader()
+    r.onload = def(evt):
+        xhr.send(evt.target.result)
+    r.readAsBinaryString(file)
+    return xhr
+
+
 def console_print(*args):
     ρσ_print(*args)  # noqa: undef
     data = ' '.join(map(str, args)) + '\n'

src/pyj/book_list/add.pyj

@@ -0,0 +1,83 @@
+# vim:fileencoding=utf-8
+# License: GPL v3 Copyright: 2018, Kovid Goyal <kovid at kovidgoyal.net>
+from __python__ import bound_methods, hash_literals
+
+from gettext import gettext as _
+
+from ajax import ajax_send_file
+from book_list.router import back
+from book_list.top_bar import create_top_bar
+from dom import ensure_id
+from file_uploads import (
+    update_status_widget, upload_files_widget, upload_status_widget
+)
+
+state = {
+    'in_progress': False,
+    'container_id': None,
+    'counter': 0,
+    'fake_send': False,
+}
+
+def on_close():
+    back()
+
+
+def get_job_container(container_id, job_id):
+    container = document.getElementById(container_id)
+    if not container:
+        return
+    return container.querySelector(f'[data-job="{job_id}"]')
+
+
+def on_progress(container_id, job_id):
+    container = get_job_container(container_id, job_id)
+    if container is None:
+        return
+
+
+def on_complete(container_id, job_id):
+    container = get_job_container(container_id, job_id)
+    if container is None:
+        return
+
+
+def fake_send(container_id, job_id):
+    container = get_job_container(container_id, job_id)
+    prev = parseInt(container.dataset.fake or '0')
+    container.dataset.fake = prev + 10
+    update_status_widget(container, container.dataset.fake, 100)
+    if parseInt(container.dataset.fake or '0') < 100:
+        setTimeout(fake_send.bind(None, container_id, job_id), 1000)
+
+
+def files_chosen(container_id, files):
+    container = document.getElementById(container_id)
+    if not container:
+        return
+    for file in files:
+        state.counter += 1
+        job_id = state.counter
+        w = upload_status_widget(file.name, job_id)
+        container.appendChild(w)
+        w.style.borderBottom = 'solid 1px currentColor'
+        if state.fake_send:
+            setTimeout(fake_send.bind(None, container_id, job_id), 100)
+        else:
+            ajax_send_file('/add-book', file, on_complete.bind(None, container_id, job_id), on_progress.bind(None, container_id, job_id), query={'id': '' + job_id})
+
+
+def add_books_panel(container_id):
+    container = document.getElementById(container_id)
+    create_top_bar(container, title=_('Add books'), action=on_close, icon='close')
+    state.in_progress = True
+    state.container_id = container_id
+    state.fake_send = False
+    return upload_files_widget(container, files_chosen)
+
+
+def develop(container):
+    c = add_books_panel(ensure_id(container))
+    state.fake_send = True
+    container.removeChild(c)
+    files_chosen(container.id, [{'name': 'test1.epub', 'type': 'application/epub+zip'}, {'name': 'xxxx.yyy'}])

src/pyj/book_list/views.pyj

@@ -7,6 +7,7 @@ from elementmaker import E
 from gettext import gettext as _
 
 from ajax import ajax_send
+from book_list.add import add_books_panel
 from book_list.cover_grid import (
     DESCRIPTION as COVER_GRID_DESCRIPTION, append_item as cover_grid_append_item,
     cover_grid_css, create_item as create_cover_grid_item, init as init_cover_grid
@@ -35,7 +36,6 @@ from book_list.search import (
 from book_list.top_bar import add_button, create_top_bar
 from book_list.ui import query_as_href, set_panel_handler, show_panel
 from dom import add_extra_css, build_rule, clear, ensure_id, set_css
-from file_uploads import upload_files_widget
 from modals import error_dialog
 from session import get_interface_data
 from utils import conditional_timeout, parse_url_params, safe_set_inner_html
@@ -452,8 +452,11 @@ def create_more_actions_panel(container_id):
 # }}}
 
 # Adding books {{{
-def implement_me():
-    upload_files_widget()
+def add_books(container_id):
+    if not library_data.sortable_fields:
+        show_panel('book_list', replace=True)
+        return
+    add_books_panel(container_id)
 
 # }}}
 

src/pyj/file_uploads.pyj

@@ -5,7 +5,7 @@ from __python__ import bound_methods, hash_literals
 from elementmaker import E
 from gettext import gettext as _
 
-from utils import safe_set_inner_html
+from utils import safe_set_inner_html, human_readable
 
 
 def upload_files_widget(container, proceed, msg):
@@ -15,12 +15,13 @@ def upload_files_widget(container, proceed, msg):
         files = this.files
         container = document.getElementById(container_id)
         container.removeChild(container.lastChild)
-        if callable(proceed):
-            proceed(container, files)
+        if callable(proceed) and files.length:
+            proceed(container_id, files)
 
     msg = msg or _('Upload books by <a>selecting the book files</a> or drag and drop of the files here')
     c = E.div(E.span(), E.input(type='file', multiple=True, style='display:none', onchange=files_selected))
-    c.style.minHeight = '40vh'
+    c.style.minHeight = '80vh'
+    c.style.padding = '1rem'
     c.style.borderBottom = 'solid 1px currentColor'
 
     safe_set_inner_html(c.firstChild, msg)
@@ -47,9 +48,21 @@ def upload_files_widget(container, proceed, msg):
     return c
 
 
+def update_status_widget(w, sent, total):
+    if total:
+        p = w.getElementsByTagName('progress')[0]
+        p.setAttribute('value', '' + sent)
+        p.setAttribute('max', '' + total)
+        w.lastChild.textContent = _(' {percent:.0%} of {total}').format(percent=sent / total, total=human_readable(total))
+
+
+def upload_status_widget(name, job_id):
+    ans = E.div(style='padding: 1rem 1ex;', data_job='' + job_id)
+    ans.appendChild(E.h3(E.b(name)))
+    ans.appendChild(E.progress())
+    ans.appendChild(E.span())
+    return ans
+
+
 def start_send(container, files):
     pass
-
-
-def develop(container):
-    upload_files_widget(container)