Store: Add Google Books plugin.

src/calibre/customize/builtins.py

@@ -1164,6 +1164,11 @@ class StoreFoylesUKStore(StoreBase):
     description = _('Foyles of London, online.')
     actual_plugin = 'calibre.gui2.store.foyles_uk_plugin:FoylesUKStore'
 
+class StoreGoogleBooksStore(StoreBase):
+    name = 'Google Books'
+    description = _('Google Books')
+    actual_plugin = 'calibre.gui2.store.google_books_plugin:GoogleBooksStore'
+
 class StoreGutenbergStore(StoreBase):
     name = 'Project Gutenberg'
     description = _('The first producer of free ebooks.')
@@ -1219,7 +1224,8 @@ plugins += [StoreArchiveOrgStore, StoreAmazonKindleStore, StoreAmazonDEKindleSto
     StoreBeamEBooksDEStore, StoreBeWriteStore,
     StoreDieselEbooksStore, StoreEbookscomStore, StoreEPubBuyDEStore,
     StoreEHarlequinStore, StoreFeedbooksStore,
-    StoreFoylesUKStore, StoreGutenbergStore, StoreKoboStore, StoreManyBooksStore,
+    StoreFoylesUKStore, StoreGoogleBooksStore, StoreGutenbergStore,
+    StoreKoboStore, StoreManyBooksStore,
     StoreMobileReadStore, StoreNextoStore, StoreOpenLibraryStore, StoreSmashwordsStore,
     StoreWaterstonesUKStore, StoreWeightlessBooksStore, StoreWizardsTowerBooksStore]
 

src/calibre/gui2/store/google_books_plugin.py

@@ -0,0 +1,93 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (unicode_literals, division, absolute_import, print_function)
+
+__license__ = 'GPL 3'
+__copyright__ = '2011, John Schember <john@nachtimwald.com>'
+__docformat__ = 'restructuredtext en'
+
+import urllib
+from contextlib import closing
+
+from lxml import html
+
+from PyQt4.Qt import QUrl
+
+from calibre import browser, url_slash_cleaner
+from calibre.gui2 import open_url
+from calibre.gui2.store import StorePlugin
+from calibre.gui2.store.basic_config import BasicStoreConfig
+from calibre.gui2.store.search_result import SearchResult
+from calibre.gui2.store.web_store_dialog import WebStoreDialog
+
+class GoogleBooksStore(BasicStoreConfig, StorePlugin):
+
+    def open(self, parent=None, detail_item=None, external=False):
+        url = 'http://books.google.com/'
+
+        if external or self.config.get('open_external', False):
+            open_url(QUrl(url_slash_cleaner(detail_item if detail_item else url)))
+        else:
+            d = WebStoreDialog(self.gui, url, parent, detail_item)
+            d.setWindowTitle(self.name)
+            d.set_tags(self.config.get('tags', ''))
+            d.exec_()
+
+    def search(self, query, max_results=10, timeout=60):
+        url = 'http://www.google.com/search?tbm=bks&q=' + urllib.quote_plus(query)
+        
+        br = browser()
+        
+        counter = max_results
+        with closing(br.open(url, timeout=timeout)) as f:
+            doc = html.fromstring(f.read())
+            for data in doc.xpath('//ol[@id="rso"]/li'):
+                if counter <= 0:
+                    break
+
+                id = ''.join(data.xpath('.//h3/a/@href'))
+                if not id:
+                    continue
+
+                title = ''.join(data.xpath('.//h3/a//text()'))
+                authors = data.xpath('.//span[@class="gl"]//a//text()')
+                if authors[-1].strip().lower() == 'preview':
+                    authors = authors[:-1]
+                else:
+                    continue
+                author = ', '.join(authors)
+
+                counter -= 1
+                
+                s = SearchResult()
+                s.title = title.strip()
+                s.author = author.strip()
+                s.detail_item = id.strip()
+                s.drm = SearchResult.DRM_UNKNOWN
+                
+                yield s
+                
+    def get_details(self, search_result, timeout):
+        br = browser()
+        with closing(br.open(search_result.detail_item, timeout=timeout)) as nf:
+            doc = html.fromstring(nf.read())
+            
+            search_result.cover_url = ''.join(doc.xpath('//div[@class="sidebarcover"]//img/@src'))
+            
+            # Try to get the set price.
+            price = ''.join(doc.xpath('//div[@class="buy-price-container"]/span[contains(@class, "buy-price")]/text()'))
+            # Try to get the price inside of a buy button.
+            if not price.strip():
+                price = ''.join(doc.xpath('//div[@class="buy-container"]/a/text()'))
+                price = price.split('-')[-1]
+            # No price set for this book.
+            if not price.strip():
+                price = '$0.00'
+            search_result.price = price.strip()
+            
+            search_result.formats = ', '.join(doc.xpath('//div[contains(@class, "download-panel-div")]//a/text()')).upper()
+            if not search_result.formats:
+                search_result.formats = _('Unknown')
+            
+        return True
+